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1)Why does a projectile launched at an angle relative to the horizontal move for

ID: 1327961 • Letter: 1

Question

1)Why does a projectile launched at an angle relative to the horizontal move forward?

2)Choose the correct statement about the vertical force exerted on a projectile and its velocity when at the top of its flight.

3)Compare the ease of pulling a lawn mower and pushing it. In particular, in which case is the friction force that the grass exerts on the mower greater?

It retains the x-component of the force from the launch. It retains the x-component of the acceleration from the launch. It retains the x-component of the velocity from the launch.

Explanation / Answer

(2) Vertical component of the velocity is zero and vertical force is non-zero.

(3) Pulling is easier

(1) It retains the x-component of the velocity from the launch.