Question

calculate the magnitude of the force required to stop a car moving with a velocity of 30 m/s in 10 seconds . the mass of the car is 1,500 kg

Answer 1

F=m(v-u)/t
=1500(30-0)/10
F =4500N

Answer 2

Hi friend here is your answer

$we \: know \: v = u + at \\ here \: v = 0 \: so \\ u = - at \\ 30 = a \times 10 \\ a = 3m \div s^{2} \\ we \: know \: f = ma \\ f = 1500 \times 30 = 45k \: newton \: ans$