Question

mutandes
(0.18: A lift starts upwards from rest with uniform acceleration
After 4s It has acquired a velocity of 10m/s, and proceeds
at this velocity for 2s. The motion is now uniformly retarded and the lift comes finally to rest 9s after starting. Then from the velocity-time graph of the motion the total distance travelled by the lift is _____m
by the lift is​

Answer 1

Slope of velocity gives acceleration.

Since, slope is constant & negative,

Hence, accceleration is negative (hence retardation).So, it is uniformly retarded and accelerated in the opposite direction.

Answer 2

Answer:

Slope of velocity gives acceleration. ... After 4s It has acquired a velocity of 10m/s, and proceeds ... now uniformly retarded and the lift comes finally to rest 9s after starting.