PHYSICAL SCIENCE (LCPO)
12th Edition
ISBN: 9781265774660
Author: Tillery
Publisher: MCG
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Chapter 2, Problem 9PEA
To determine
The average speed of a car for a 3-hour trip.
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Students have asked these similar questions
A student drives the 105-mi trip back to campus after spring break and travels with an average speed of 63 mi/h for 1 hour and 30 minutes for the first part of the trip.
(a) What distance was traveled during this time? Answer: 94.5 mi
(b) Traffic gets heavier, and the last part of the trip takes another half-hour. What was the average speed during this leg of the trip?
(c) Find the average speed for the total trip.
To visit your friend, you first drive on a highway at 55 mi/h for 1.6 hours and then
drive on a local road at 20 mi/h for 0.7 hours. What is the average velocity of your
trip in mi/h to your friend's home?
Your Answer:
Answer
A student drives the 100-mi trip back to campus after spring break and travels with an average speed of 53 mi/h for 1 hour and 30 minutes for the first part of the trip.(a) What distance was traveled during this time?mi
(b) Traffic gets heavier, and the last part of the trip takes another half-hour. What was the average speed during this leg of the trip?mi/h
(c) Find the average speed for the total trip.mi/h
Chapter 2 Solutions
PHYSICAL SCIENCE (LCPO)
Ch. 2 - 1. A straight-line distance covered during a...Ch. 2 - 2. How fast an object is moving in a particular...Ch. 2 -
3. Acceleration occurs when an object undergoes...Ch. 2 - Prob. 4ACCh. 2 -
5. A car moving at 60 km/h comes to a stop in 10...Ch. 2 -
6. According to Galileo, an object moving without...Ch. 2 -
7. In free fall, an object is seen to have a (an)...Ch. 2 -
8. A tennis ball is hit, causing it to move...Ch. 2 -
9. A quantity of 5 m/s2 is a measure of...Ch. 2 - 10. An automobile has how many different devices...
Ch. 2 - 11. Ignoring air resistance, an object falling...Ch. 2 - 12. Ignoring air resistance, an object falling...Ch. 2 - 13. Two objects are released from the same height...Ch. 2 - 14. A ball rolling across the floor slows to a...Ch. 2 - 15. The basic difference between instantaneous and...Ch. 2 - 16. Does any change in the motion of an object...Ch. 2 - 17. A measure of how fast your speed is changing...Ch. 2 - 18. Considering the forces on the system of you...Ch. 2 - 19. Newton’s first law of motion describes
a. the...Ch. 2 - 20. You are standing freely on a motionless...Ch. 2 - 21. Mass is measured in kilograms, which is a...Ch. 2 - 22. Which metric unit is used to express a measure...Ch. 2 - 23. Newton’s third law of motion states that...Ch. 2 - 24. If you double the unbalanced force on an...Ch. 2 - 25. If you double the mass of a cart while it is...Ch. 2 - 26. Doubling the distance between the center of an...Ch. 2 - 27. If a ball swinging in a circle on a string is...Ch. 2 - 28. A ball is swinging in a circle on a string...Ch. 2 - 29. Suppose the mass of a moving scooter is...Ch. 2 - 30. Two identical moons are moving in identical...Ch. 2 - 31. Which undergoes a greater change of momentum,...Ch. 2 - Prob. 32ACCh. 2 - 33. An astronaut living on a space station that is...Ch. 2 - Prob. 34ACCh. 2 -
35. You are at rest with a grocery cart at the...Ch. 2 -
36. Once again you are at rest with a grocery...Ch. 2 -
37. You are moving a grocery cart at a constant...Ch. 2 -
38. You are outside a store, moving a loaded...Ch. 2 -
39. Neglecting air resistance, a ball in free...Ch. 2 -
40. From a bridge, a ball is thrown straight up...Ch. 2 -
41. After being released, a ball thrown straight...Ch. 2 -
42. A gun is aimed horizontally at the center of...Ch. 2 -
43. According to the third law of motion, which...Ch. 2 -
44. A small sports car and a large SUV collide...Ch. 2 -
45. Again consider the small sports car and large...Ch. 2 -
46. An orbiting satellite is moved from 10,000 to...Ch. 2 -
47. Newton’s law of gravitation considers the...Ch. 2 - 1. An insect inside a bus flies from the back...Ch. 2 - 2. Disregarding air friction, describe all the...Ch. 2 -
3. Can gravity act in a vacuum? Explain.
Ch. 2 -
4. Is it possible for a small car to have the...Ch. 2 -
5. Without friction, what net force is needed to...Ch. 2 -
6. How can there ever be an unbalanced force on...Ch. 2 -
7. Why should you bend your knees as you hit the...Ch. 2 -
8. Is it possible for your weight to change while...Ch. 2 - Prob. 9QFTCh. 2 - 10. Suppose you are standing on the ice of a...Ch. 2 - 11. A rocket blasts off from a platform on a space...Ch. 2 - 12. An astronaut leaves a spaceship that is moving...Ch. 2 - 1. What are the significant similarities and...Ch. 2 - 2. What are the significant similarities and...Ch. 2 -
3. Compare your beliefs and your own reasoning...Ch. 2 -
5. Why is it that your weight can change by...Ch. 2 -
6. Assess the reasoning that Newton's first law...Ch. 2 - Prob. 6FFACh. 2 - Prob. 1IICh. 2 - Prob. 1PEACh. 2 - Prob. 2PEACh. 2 - Prob. 3PEACh. 2 - Prob. 4PEACh. 2 - Prob. 5PEACh. 2 - Prob. 6PEACh. 2 - Prob. 7PEACh. 2 - Prob. 8PEACh. 2 - Prob. 9PEACh. 2 - Prob. 10PEACh. 2 - Prob. 11PEACh. 2 - Prob. 12PEACh. 2 - Prob. 13PEACh. 2 - Prob. 14PEACh. 2 - Prob. 15PEACh. 2 - Prob. 16PEACh. 2 - Prob. 17PEACh. 2 - Prob. 18PEACh. 2 - What is the resulting acceleration when an...Ch. 2 - What is the momentum of a 100 kg football player...Ch. 2 - A car weighing 13,720 N is speeding down a highway...Ch. 2 - A 15 g bullet is fired with a velocity of 200 m/s...Ch. 2 - Prob. 23PEACh. 2 - (a) What is the weight of a 1.25 kg book? (b) What...Ch. 2 - Prob. 25PEACh. 2 - Prob. 26PEACh. 2 - Prob. 27PEACh. 2 - Prob. 28PEACh. 2 - Prob. 29PEACh. 2 - Prob. 30PEACh. 2 - Prob. 31PEACh. 2 - 1. What was the average speed in km/h of a car...Ch. 2 - 2. What was the average speed in km/h of a boat...Ch. 2 -
3. How much would an 80.0 kg person weigh (a) on...Ch. 2 -
4. What force is needed to give a 6,000 kg truck...Ch. 2 -
5. What is the resulting acceleration when a 300...Ch. 2 -
6. A boat moves 15.0 km across a lake in 30.0...Ch. 2 -
7. If the Sun is a distance of 1.5 108 km from...Ch. 2 -
8. How many meters away is a cliff if an echo is...Ch. 2 -
9. A car has an average speed of 80.0 km/h for 1...Ch. 2 - 10. What is the acceleration of a car that moves...Ch. 2 - 11. How much time is needed for a car to...Ch. 2 - 12. A rocket moves through outer space at 11,000...Ch. 2 - 13. Sound travels at 348 m/s in the warm air...Ch. 2 - 14. How many hours are required for a radio signal...Ch. 2 - 15. A rifle is fired straight up, and the bullet...Ch. 2 - 16. A rock thrown straight up climbs for 2.50 s,...Ch. 2 - 17. An object is observed to fall from a bridge,...Ch. 2 - 18. A ball dropped from a window strikes the...Ch. 2 - 19. Find the resulting acceleration from a 300 N...Ch. 2 - 20. What is the momentum of a 30.0 kg shell fired...Ch. 2 - 21. What is the momentum of a 39.2 N bowling ball...Ch. 2 - 22. A 30.0 kg shell is fired from a 2,000 kg...Ch. 2 - 23. An 80.0 kg man is standing on a frictionless...Ch. 2 - 24. (a) What is the weight of a 5.00 kg backpack?...Ch. 2 - 25. What net force is required to accelerate a...Ch. 2 - 26. What forward force must the ground apply to...Ch. 2 - 27. A 1,000.0 kg car accelerates uniformly to...Ch. 2 - 28. A net force of 3,000.0 N accelerates a car...Ch. 2 - 29. How much does a 60.0 kg person weigh?
Ch. 2 - 30. What tension must a 50.0 cm length of string...Ch. 2 - 31. A 200.0 kg astronaut and equipment move with a...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A student drives the 105-mi trip back to campus after spring break and travels with an average speed of 65 mi/h for 1 hour and 30 minutes for the first part of the trip. what distance was traveled during this time? traffic gets heavier, and the last part of the trip takes another half-hour. What was the average speed during this leg of the trip? find the averts speed of the total trip.arrow_forwardWe travel from Winnipeg to Regina and back. The total distance is 1100km. The return to Winnipeg is made in a snowstorm at an average speed of 20km/h slower than the outward journey. If the whole trip took 13 hours, what is the average speed in each direction?arrow_forwardWhen the legal speed limit for the New York Thruway was increased from 55 mi/h to 65 mi/h, how much time was saved by a motorist who drove the 700 km between the Buffalo entrance and the New York City exit at the legal speed limit?arrow_forward
- When the legal speed limit for the New York Thruway was increased from 55 mi/h to 65 mi/h, how much time was saved by a motorist who drove the 553 km between his entrance and the New York City exit at the legal speed limit?arrow_forwardAmel goes for a walk with a speed of 3kph. After 30 minutes of walk, his wife follows him. Walking 3.25 km for the first hour, 3.75 km for the second hour, 4 km for the third hour and so on maintaining a speed of .25 km per hour. How many hours does the wife take to catch up to her husband?arrow_forwardOn May 26, 1934, a streamlined, stainless steel diesel train called the Zephyr set the world’s nonstop longdistance speed record for trains. Its run from Denver to Chicago took 13 hours, 4 minutes, 58 seconds, and was witnessed by more than a million people along the route. The total distance traveled was 1633.8 km. What was its average speed in km/h and m/s?arrow_forward
- A motorist leaves Caribou City at 5:24 am, drives the 235 miles to Shellberg , takes a 54 minute break and then drives a further 300 miles to Springton, arriving at 6:48 pm. (a) Assuming the motorist drives at a constant speed throughout the journey, at what speed (to the nearest mile per hour) does he/she travel? Answer: ______ miles per hour ( b) If the motorist had gone 8 miles per hour slower than the speed you recorded in part (a), at what time (to the nearest minute) would he or she arrive? Answer: _______pm (c) If the motorist had gone 3 miles per hour faster than the speed you recorded in part (a), at what time (to the nearest minute) would he or she arrive? Answer: _________pmarrow_forwardA race car completes a lap on a 1600 m long track with an average speed of 250 km/h. If the car's average speed on the first half of the track was 230 km/h, what was its average speed (in km/h) on the second half?arrow_forwardTo burn the fats she accumulated during the lockdown, Katie walks south at a speed of 2.00 m/s for 60.0 minutes. She then turns around and walks north a distance 3000 m in 25.0 minutes. What is her total distance covered?arrow_forward
- From a speed of 46 kph, a train decelerates at the rate of 2m/min², along the path. How far in meters will it travel after 12 minutes? answer: whole numberarrow_forwardA car drives from Mechanicsburg, PA to Carlisle, PA which is 17 km away in 17 minutes. Due to traffic, the return trip takes 30 minutes. What is the average speed for the whole trip? Give you answer in units of m/s to 1 decimal place.arrow_forwardWhile on a car trip of 2000 km, you travel half of the distance at 120 km/hr and the other half at 30.0 km/hr. On the return trip, you travel half the time at 120 km/hr and the other half at 30.0 km/hr. What is your average speed for the entire trip (in km/hr)? Type your answer here km/hrarrow_forward
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