Exam 3: Linear Motion

Someone standing at the edge of a cliff throws one ball straight up and another ball straight down at the same initial speed.Neglecting air resistance,the ball to hit the ground below the cliff with the greater speed will be

While a car travels around a circular track at a constant speed,its

An object covers a distance of 8 meters in the first second of travel,another 8 meters during the next second,and 8 meters again during the third second.Its acceleration in meters per second per second is approximately

If you drop an object,it will accelerate downward at a rate of 9.8 meters per second per second.If you instead throw it downwards,its acceleration (in the absence of air resistance)will be

At one instant an object in free fall is moving downward at 50 meters per second.One second later its speed should be about

The muzzle velocity of a bullet fired from a new rifle is 100 m/s.Neglecting air resistance,at the end of one second a bullet fired straight up into the air will have traveled a distance of

An object at rest near the surface of a distant planet starts to fall freely.If the acceleration there is twice that of the Earth,its speed one second later would be

It takes 6 seconds for a stone to fall to the bottom of a mine shaft.How deep is the shaft?

In each second of fall,the distance a freely falling object will fall is

If a car accelerates from rest at 2 meters per second per second,its speed 3 seconds later will be about

If an object moves with constant acceleration,its velocity must

Disregarding air resistance,objects fall with constant

An apple falls from a tree and hits the ground 5 meters below.It hits the ground with a speed of about

If a projectile is fired straight up at a speed of 10 m/s,the time it takes to reach the top of its path is about

An apple falls from a tree and hits the ground 5 meters below.It hits the ground with a speed of about