Question

A 975 kg drag race car accelerates from rest to 110 km/h in 1.03 s. What change in momentum does the force produce? Answer in units of kg · m/s

Answer 1

Answer:

M = 29786.25 kg * m /s

Explanation:

Given

m = 975 kg

v = 110 km / h

t = 1.03 s

Solve v

v = 110 km / h * (1000 m / 1 km) * ( 1 h / 3600 s )

v = 30.55 m /s

x = v * t = 30.55 m /s * 1.03 s

x = 31.47 m

M = m * v

M = 975 kg * 30.55 m/s

M = 29786.25 kg * m /s