Question

When a driver travelling with a speed of 10 m/s applies brakes and brings the car to rest in 20 sec, then retardation in m/s square will be...

Answer 1

Answer:

Pretty simple

Using the equation of motion

V = U + at

Your v = 0 m/sec

U = 10 m/sec

t = 20 sec

a in this case negative acceleration i.e. deceleration = ?

so substituong in the equation of motion mentioned above,

Deceleration = 0.5 m/sec^2

Hope you understood

Answer 2

Answer:

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