A car starts from rest and attains a velocity of 10 ms^–1 in the 40s. The driver applies breaks and slows down the car to 5 ms^–1 in 10s. Find the acceleration of the car in both the cases.

Question

A car starts from rest and attains a velocity of 10 ms –1 in the 40s. The driver applies breaks and slows down the car to 5 ms –1 in 10s. Find the acceleration of the car in both the cases.

Philoid · Accepted Answer

Case – 1:

Car starts from rest. So,

Initial Velocity = = 0

Final velocity = = 10 ms^–1

Time Taken = = 40 s

Now using equations of motion:

Case – 2:

Let the initial velocity = = 10 ms^–1

Final Velocity = = 5 ms^–1

Time taken = = 10 s

So, using equations of motion:

A car starts from rest and attains a velocity of 10 ms–1 in the 40s. The driver applies breaks and slows down the car to 5 ms–1 in 10s. Find the acceleration of the car in both the cases.

A car starts from rest and attains a velocity of 10 ms^–1 in the 40s. The driver applies breaks and slows down the car to 5 ms^–1 in 10s. Find the acceleration of the car in both the cases.