A child is rolling a ball down a slide to his friend. The ball has a mass of 3 kg, and the slope of the slide has an angle of 38 degrees. If the friction coefficient between the slide and the ball is .5  A) what is the acceleration of the ball in m/s2 ? B) When the ball travels 2 meters what will its speed be?

A student drops a water balloon out of a dorm window 13 m above the ground. What is its speed when it hits the ground? m/s

A box with a mass of 15 kilograms is being pushed along the ground by a force of 32 Newtons.  A frictional force of 10 Newtons pushes in the opposite direction.  What is the acceleration of the box in m/s2 ?

You have been hired as a physics professor by some aliens and taken far far away to their ‘planet’. Being curious, you wanted to find out which ‘planet’ you were on. With an alien stopwatch you determined the time for a 2.0 kg alien object released from a height of 2.5 m to hit the ground to be 1.75 s.   1. What is the acceleration due to gravity on the alien ‘planet’?                                                            2. With what speed does the alien 2.0 kg object hit the ground?

Lucile throws a water balloon off of the edge of a building. She throws it downward with a speed of 4.1 m/s. After 1.5 seconds, what is the balloon’s velocity?

Consider the following descriptions of the vertical motion of an object subject only to the acceleration due to gravity. Begin with the acceleration equation a(t) = v'(t) = g, where g= - 9.8 m/s. a. Find the velocity of the object for all relevant times. b. Find the position of the object for all relevant times. c. Find the time when the object reaches its highest point. What is the height? d. Find the time when the object strikes the ground. A softball is popped up vertically (from the ground) with a velocity of 25 m/s. а. v(t) b. s(t) = %3D c. The object's highest point is m at time t= S. (Simplify your answers. Round to two decimal places as needed.) d. t= (Simplify your answer. Round to two decimal places as needed.)

Alicia rides her bicycle for 8 hours and is 90 miles from her house. After riding for 12 hours, she is 134 miles away.What is Alicia's average rate during her trip?

A ballast bag is released from a balloon that is 300 meters above the ground and is rising at 14 m/sec. a) What is the ballast bag’s maximum height above the ground? b) What is it’s velocity 6 seconds after being released? c) When will it reach the ground?

A train accelerates from 100 m/s west to 170 m/s      west in 10 seconds. What is the acceleration of the       bus?                               a = Vf – Vi                                                     time  7 m/s2 7 m/s2 80 m/s2 280 m/s2    A biker rides 80 meters in 12 seconds.  His average speed is ___. (s=d/t) 15 m/s 67 m/s 58 m/s 92 m/s   According to Newton’s 3rdLaw of Motion, for every action, there is ___. Work being done An equal and opposite reaction An unbalanced force on the reaction. An equal reaction continuing the direction of motion

Fast Car: On a hot day in the flats, the temperature is 106.2 degrees. A driver finds an empty, flat stretch of desert that is 1913 meters long and decides to push the limits of his car. He finds the car can accelerate from 0 to 60 mph (26.8 m / s) in 4.95 s. Now he wants to see how fast the car can go. Assume the car maintains the same average acceleration until it reaches its top speed of 87.9 m / s. (a) How long will it take the car to reach its top speed? (b) How far will the car travel before it reaches its top speed?