Question

Why is the answer C?

Answer 1

Explanation:

The horizontal velocity reached by the mass is:

v = v₀ + at

vₓ = 0 + (F/m) (1 s − 0 s)

vₓ = F/m

The force is then removed, so the mass continues at this horizontal velocity.

The vertical velocity reached by the mass is:

v = v₀ + at

vᵧ = 0 + (F/m) (2 s − 1 s)

vᵧ = F/m

The force is then removed, so the mass continues at this vertical velocity.

So at 2 seconds, the mass's velocity has equal components in the x and y directions, and continues to have that velocity at 3 seconds.