7. A man walks in a straight path from point 1 to point 2 in 3.0 hours andreturned to point 1 in 5.0 hours. Point 1 to point 2 is 200.0 m apart. Which ofthe following could best describe the situationa) average velocity is 53.4 m/hb) average speed is 54.3 m/hc) speed from point 1 to point 2 is 66.7 m/h and speed for returm trip is 40.0 m/hd) none of the above

Given data: Distance between point 1 and 2 (d) = 200 m Time taken to go from point 1 to point 2 t1…

Answered: 7. A man walks in a straight path from…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A ball is thrown with an upward velocity of 5m/s from the top of a 10-m high building. One second later, another ball is thrown vertically from the ground with the velocity of 10m/s; 6. How far above the building did the first ball go before starting to drop? O 1.275m O 1.176m O 1.5m O 0.51m
10. An antelope moving with constant acceleration covers the distance between two points 70.0 m apart in 7.00 s. Its speed as it passes the second point is 15m/s (a) What is its speed at the first point? (b) What is its acceleration?
Request control PROBLEMS 26 QL. An automobile driver increases the velocity at a constant rate from 25 km/h to 55 km/h in 0.50 min. A bicycle rider speeds up at a constant rate from rest to 30 km/h in (a) the driver's acceleration and (b) the rider's acceleration. 0.50 min. Calculate O PHY 86
d) Find the average velocity over the entire 4. A car starts from rest and accelerates atthe = 112.5m %3D 8 4. A car starts from rest and acceleratesa rate of 2ms for 5 seconds. It maintains velocity for another 5 seconds. It eventua undergoes a uniform deceleration and fin come to rest after further 5 seconds. a) Draw the velocity-time graph for the journey. b) Find the acceleration and deceleration respectively c) Find the total distance travelled during each stage. LEGO period. Solution (a) From the question; 43D0,t%3D5S
v(t) (m/s) 39. Sketch the acceleration-versus-time graph from the following velocity-versus-time graph. Velocity vs. Time 10 864 2 0 -2. -4 -6 -8 -10- 0 Search this book 10 Q 1 1 I 20 30 40 50 60 70 80 90 100 Time (s)
3. A person walks first at a constant speed of 2 m/s along a straight line from point A to point B and then back along the line from point B to point A at a constant speed of 4 m/s. What is her average speed over the entire trip (in m/s)? A)2.67 B) 4.46 C) 3.75 D) 6.86
a)Calculate the y component of this runner's average acceleration between points Aand B. b)Find the y component of this runner's average velocity between points C and D.
25. A rock is thrown upward at a speed of 15.17ms. How much time will it take to return to the point it was thrown from?t= seconds*Round your answer to the nearest thousandth if needed.
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2: If I walk 15 meters East and then 15 meters North and my total trip takes 10 seconds, what is my average velocity? A) 0 m/s B) 2.12 m/s NE C) 3.00 m/s NE D) 21.2 m/s NE
An ambulance is not moving in front of a redtraffic light. As the lightturns green, a truck goespast at a constant speed of 20. m/s. At the samemoment, the ambulance begins to accelerate at 2.0m/s^2; when it reaches 35.m/s the ambulancecontinues at that speed.a) The ambulance willpass the truck after how many secondsb) Find their distance from the traffic light at this time
A ball is thrown with an upward velocity of 5m/s from the top of a 10-m high building. One second later, another ball is thrown vertically from the ground with the velocity of 10m/s; 7. How far is the first ball from the ground before the second ball was thrown upward? O 10.099m O 11.9m O 1.176m O 0.099m

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