Question

-2. A car has a velocity of 10 ms. It accelerates at 0.2 ms for half minute. Find the distance travelled during this time and the final velocity of the car.car moves with uniform velocity of 40 metre per second for 5 seconds it comes to rest in the next 10 seconds with uniform deceleration find deceleration​

Answer 1

Answer:

A car has a velocity of 10 ms. It accelerates at 0.2 ms for half minute. Find the distance travelled during this time and the final velocity of the car.car moves with uniform velocity of 40 metre per second for 5 seconds it comes to rest in the next 10 seconds with uniform deceleration find deceleration

Explanation:

Initial Velocity (u) = 10 m/sec

Acceleration (a) = 5 m/sec2

Distance (s) = 30 m

Final velocity (v) =  ??

Using Newton's Third law of Motion,

v2=u2+2as

v2=102+2×5×30

 v2=100+300

 v2=400

 v = 400

 v = 20 m/sec