Question

the engine is turned off after 15 seconds from the acceleration of the car at this point will be take frictional force equal to 15 Newton and velocity 20 ,mass 1000 kg ​

Answer 1

To Find:-

• Acceleration of the engine

Given:-

u=20m/s

v=0m/s (turned off)

t= 15m/s

F=15N

M= 1000kg

Solution:-

We can find acceleration using

F=MA

15=100×A

A=15÷1000

A=0.015m/s²

Answer 2

To Find:-

The acceleration of the car at this point will take frictional force equally.

Given:-

$u=20m/s$

$v=0m/s$

$t= 15m/s$

$F=15N$

$M= 1000kg$

Solution:-

$F=MA$

$15=100×A$  

$A=15÷1000$  

$A=0.015m/s²$

Answer:

The equal to 15 Newton and velocity 20, mass 1000 kg ​is $A=0.015m/s^{2}$