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#### Question

Read each statement below carefully and state with reasons and examples, if it is true or false;

A particle in one-dimensional motion with constant speed must have zero acceleration

#### Solution

#### Similar questions VIEW ALL

Read each statement below carefully and state with reasons and examples, if it is true or false;

A particle in one-dimensional motion with positive value of acceleration mustbe speeding up.

A police van moving on a highway with a speed of 30 km h^{–1} fires a bullet at a thief’s car speeding away in the same direction with a speed of 192 km h^{–1}. If the muzzle speed of the bullet is 150 m s^{–1}, with what speed does the bullet hit the thief’s car ? (Note: Obtain that speed which is relevant for damaging the thief’s car).

State the number of significant figures in the following:

2.64 × 10^{24} kg

Figure shows the *x-t *plot of one-dimensional motion of a particle. Is it correct to say from the graph that the particle moves in a straight line for *t *< 0 and on a parabolic path for *t *> 0? If not, suggest a suitable physical context for this graph.

A drunkard walking in a narrow lane takes 5 steps forward and 3 steps backward, followed again by 5 steps forward and 3 steps backward, and so on. Each step is 1 m long and requires 1 s. Plot the *x*-*t*graph of his motion. Determine graphically and otherwise how long the drunkard takes to fall in a pit 13 m away from the start.