Question

Calvin is driving his 2300 kg car at 20. m/s. As he approaches a red light, he steps on the brakes and his car comes to rest after 50. m. Determine the force. PLS ANSWER QUICKLY

Answer 1

9200 N

Step-by-step explanation:

Use work energy theorem.

Work done on the car = change in energy

W = KE

Fd = ½ mv²

F (50. m) = ½ (2300 kg) (20. m/s)²

F = 9200 N