Question

a car of mass 60kg is moving on a road at 30m/s. Suddenly put in neutral gear, after that its speed decreases due to air drag and other resistance forces as V=$\frac{30}{1+\frac{t}{10} }$m/s. Choose the correct statement:-

(A) Car is uniformly accelerated in neutral gear.
(B) Magnitude of acceleration of car is 1m/s$x^{2}$ when its speed becomes 10m/s.
(C) Sum of all the resistance forces acting on car when its speed becomes 15m/s is, 45N.
(D) Power needed to move the car at 10m/s is, 100watt.

Answer 1

Explanation:

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sorry for this thing

Answer 2

Explanation:

WHEN WHEN THE CAR IN SUDDEN BREAK

THE CORRECT ANSWER IS OPTION A) CAR IS AN UNIFORMLY ACCELERATED IN NEUTRAL GEAR.