A ball of mass 0.3 kg flies through the air at low speed, so that air resistance

Question

A ball of mass 0.3 kg flies through the air at low speed, so that air resistance is negligible. What is the net force acting on the ball while it is in motion? F rightarrow net= N Which components of the ball's momentum will be changed by this force? What happens to the x component of the ball's momentum during its flight? What happens to the y component of the ball's momentum during its flight? What happens to the z component of the ball's momentum during its flight? In this situation, why is it legitimate to use the formula for average y component of velocity, vavg, y = vyi + vyf / 2, to update the y component of position? Check all that apply. The ball's speed is small compared to the speed of light. This formula for average velocity is always valid. The ball's velocity changes at a constant rate because the net force on the ball is constant.

Explanation / Answer

a) F = mg = 0.3*9.81 only the y direction of momentum changes x and z stay the same y momentum bcomes more negative the ball's velocity changes at a constant rate

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