The driver of a 1.5 x 10^3 kg car is traveling cast at 10 ms and increases its speed to 30 m/s east over 15 seconds. What is the initial and final momentum of the body? What is the net force acting on it?

See explanations below

Explanation:

Force = m(v-u)/t

mass m = 1.5*10^3kg = 1500kg

v = 30m/s

u = 10m/s

Time t = 15secs

F = 1500(30-10)/15

F = 1500(20)/15

F = 100 * 20

F = 2000N

Force acting on it is 2000N

momentum = mass * velocity

final momentum = 1500 * 30

final momentum = 45000kgm/s

initial momentum = 1500 * 10

initial momentum = 15000kgm/s