Question

Write real life examples to show :
a. When the speed becomes zero for an instant.
b. When the acceleration of an object is zero.
c. When the body is accelerating.
d. When the body is in negative acceleration.​

Answer 1

Answer:

a)example is when you're in a car, stopped at a red light. When it turns green, you accelerate; however, because you started stationary, there MUST be a point at which your velocity was zero and your acceleration was nonzero. If acceleration had to be zero when the velocity of the car is zero, the car wouldn't be able to move—ever

(b) When a body is thrown up, then while going up, velocity is upward but the acceleration is vertically downward.

(c) When a body is moving on a circular path with uniform speed, then its velocity is tangential and the acceleration is radial( centripetal acceleration). That is velocity is normal to acceleration.

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