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?

Question

20 February, 09:51

+3

Answers (1)

Know the Answer?

Emerson Montoya · Answer 1

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.

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 brakingforce acting opposite to the car's motion. Use the impulse momentum equation to answer the following What's thevelocity after 2.5 s?