Question

a car of mass 1000 kg is moving with a certain speed when a constant breaking force 1000 Newton acts on it for about 5 seconds and speed of car reduces to half of its original speed. Find the further time required to stop the car if same constant force acts on it ​

Answer 1

Answer:

5 s

Explanation:

F=ma

1000=1000a

⇒a=1m/s²

⇒a=v-u/t

⇒1=(u/2-u)/5

⇒u=-10m/s

v=u+at

0=-5+1t

5=t