Unit 1 and 2 Review

Which of the following dot diagrams shows an object that is accelerating

An leftward moving object experiences a rightward acceleration. Which statement best describes what happens to the object's motion?

A car with an initial velocity of 16.0 meters per second east slows uniformly to 6.0 meters per second east in 4.0 seconds. What is the acceleration of the car during this 4.0-second interval?

The speed of a car is increased uniformly from 11 meters per second to 19 meters per second in 4 seconds. The acceleration of the car during this interval is

Which graph shows the object standing still?

A baseball player with a lead off of 2nd must run back to base when the pitcher sees he is not on base and attempts to get him out. Which graph best represents the baseball player running back to 2nd base?

This is a velocity-time graph. What is the object doing in segment C?

During which interval is the object traveling at a constant velocity?

The graph below represents the relationship between velocity and time for an object moving along a straight line. What is the magnitude of the object’s acceleration?

A car that was initially at rest, speeds up with a constant acceleration. Which of the following graphs best represents this scenario?

Which best describes the vertical motion of a projectile, assuming no air resistance?

Which best describes the horizontal motion of a projectile, assuming no air resistance?

A projectile with mass m is fired with initial horizontal velocity vx from height h above level ground. Which change would have resulted in a greater time of flight for the projectile? [Neglect friction.]

A ball is thrown with a velocity of 35 meters per second at an angle of 30.° above the horizontal. Which quantity has a magnitude of zero when the ball is at the highest point in its trajectory?

A soccer ball is kicked into the air from level ground with an initial speed of 20. meters per second and returns to ground level. At which angle above the horizontal should the ball be kicked in order for the ball to travel the greatest total horizontal distance?

A ball is thrown across the field in a parabolic path. At the highest height, describe the motion of the ball.