Can a particle moving in a straight line have zero velocity and non-zero acceleration at any instant? Give an example.
(N/A) Yes,a particle moving in a straight line can have zero velocity and non-zero acceleration at the same instant.
For example,when a ball is thrown vertically upwards,at the highest point of its trajectory,its instantaneous velocity is $0 \ m/s$,but it still experiences a constant acceleration due to gravity $(g \approx 9.8 \ m/s^2)$ acting downwards.
For example,when a ball is thrown vertically upwards,at the highest point of its trajectory,its instantaneous velocity is $0 \ m/s$,but it still experiences a constant acceleration due to gravity $(g \approx 9.8 \ m/s^2)$ acting downwards.
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