Question

2. A 2,500 kg car traveling to the north is slowed down uniformly from an initial velocity of 20 m/s by a 6,250 N braking
force acting opposite to the car's motion. Use the impulse momentum equation to answer the following What's the
velocity after 2.5 s?

Answer 1

Answer:

13.75 m/s

Explanation:

Impulse = change in momentum

F Δt = m Δv

(-6250 N) (2.5 s) = (2500 kg) (v − 20 m/s)

v = 13.75 m/s

Round as needed.