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Q: You start out by driving 72 miles south in 3 hours and 20 minutes, and then you stop and park for a…

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Q: a car is traveling 10m/s north. what are two things that can be done to change the cars motion?

A: A car is traveling at a velocity 10m/s North. The two things that can be done to change the motion :…

Q: A car moving with a velocity 10 m/s reaches at 30 m/s in 10 s. What is the acceleration of the car?…

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Q: A cheetah accelerates constantly from rest to catch a gazelle. The cheetah covers a distance of 40 m…

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Q: A Deadly Virus. On your flight out of South America your cargo plane emergency-lands on a deserted…

A: Given:  Vertical acceleration = 7.2 g Horizontal initial speed  = u = 150 mph Horizontal stopping…

Q: 5. If you reduce the applied force on an object by 4, what do you think will happen to the…

A: Write the expression for Newton’s law.

Q: Mary applies a force of 70 N to push a box with an acceleration of 0.60 m/s2. When she increases the…

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Q: You start out by driving 148 miles north in 2 hours and 34 minutes, and then you stop and park for a…

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Q: A car has 1 hour and 20 minutes to travel 80 km. The car travels at 16m/sec for the first 30…

A: The distance covered is, x=utx=16 m/s30 minutes60 s1 minutex=28800 mx=28.8 km   thus, the remaining…

Q: It is not possible to see very small objects, such as viruses, using an ordinary light microscope.…

A: Given:- the xy plane with initial velocity vi =v i . As it passes through the region x=0 to x=d, the…

Q: A stone is thrown straight upward and it rises to a maximum height of 49 m. With what speed was it…

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Q: A person driving on I-82 glanced at his phone to read a very important text message. When he looked…

A: Displacement S = 96.5 mFinal velocity v = 0 m/sDrag sled mass m = 3.9 kgDrag sled Force Fr = 28 N

Q: I was born in Colorado and 40 years later I live in New Jersey, 1800 miles away. My sister was born…

A: Therefore average speed= total distance travelled/total time

Q: A spring is fixed to a board so that its hanging from it vertically. A 10 kg mass is attached to the…

A: Let spring constant be "K".   On earth, mge=Kxe         .....(1)   on moon, mgm=Kxm        ......(2)…

Q: A monkey of mass 20 kg is holding a vertical rope. The rope will not break when a mass of 25 kg is…

A: Given, A monkey of mass 20 kg is holding a verticle rope. m = 20 kg The rope will break if the mass…

Q: A child is sitting on the outer edge of a merry-go-round that is 18 m in diameter. If makes 5.4…

A: Determine the angular velocity.

Q: What is the average acceleration of a car

A: Given data: The initial velocity of car is:  u = 0 m/s The final velocity of car is: v = 100 m/s The…

Q: A rescue helicopter lifts a 57.7-kg person straight up by means of a cable. The person has an upward…

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Q: Very large accelerations can injure the body, especially if they last for a considerable length of…

A: Given initial velocity u=0final velocity v=16.6 km/h = 4.61 m/sacceleration a = 33m/s2

Q: Mira walked 120.0 meters in 75 seconds. How long will she have to walk the next 80.0 meters in order…

A: The average speed is the ratio of total distance traveled to the total time taken and the relation…

Q: Which of these is the best description for velocity? the total sum of all paths taken by an object…

A: Required: The best description for the velocity of an object or body

Q: A bullet shot straight up returns to its starting point in 17 s. What is the initial speed of the…

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Q: The car speed in the figure is v = 0.3 (9t2 + 2t) m / s it moves on for a short time. The unit of t…

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Q: the object's displacement

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Q: A car was traveling at 20 m/s and then started increasing its speed by 5 m/s for every 10 seconds…

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Q: In deep space, an astronaut is whipping a heavy tool around in a circle by a taut cable. The cable…

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Q: How much time did you spend parked?

A: Given: Distance covered in north direction is d1=91 miles Time taken to cover distance d1 is t1=4…

Q: The strings and frictionless pulleys have negligible masses.  The coefficients of kinetic friction…

A: Given that, the mass of block A is mA=3kg the mass of block B is mB=4kg coefficient of kinetic…

Q: You start out by driving 50 miles north in 2 hours and 8 minutes, and then you stop and park for a…

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Q: A car travels at 50 km/hr for 65 km and then slows down to 20 km/hr for another 35 km. What is its…

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Q: You start out by driving 107 miles north in 2 hours and 2 minutes, and then you stop and park for a…

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Q: A child pulls a 20 kg sled with a rope that makes an angle of 30° with the ground. The tension in…

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Q: 2. A person on the roof of a 250m tall building kicks a soccer ball at initial speed 30" and initial…

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Q: A Deadly Virus. On your flight out of South America your cargo plane emergency-lands on a deserted…

A: T

Q: You and four of your friends are all interested in getting out of town for a break. Two of your…

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Q: You shoot a ball straight up with an initial speed of 8490 m/s. When it reaches a height of 4.0 x 10…

A: Given, v0=8490 m/sh=4.0×106 m

Q: Archibald, an aging geezer, is out bicycling one fine afternoon, reliving his glorious youth and…

A: Consider the traffic police as the source of the sound, and it is stationary. Also, consider Archie…

Q: It takes Serina 0.25 hours to drive to school. Her route is 16 km long. What is Serina's average…

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!