Q6 of 89 Page 48

At which point on its path a projectile has the smallest speed?

A projectile has the smallest speed at the highest point since at this point there is only a horizontal component of the velocity present.


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4

A ball is thrown vertically upward with a speed of 20 m/s. Draw a graph showing the velocity of the ball as a function of time as it goes up and then comes back.

 5

The velocity of a particle is towards west at an instant. Its acceleration is not towards west, not towards east, not towards north and not towards south, Give an example of this type of motion.

 7

Two particles A and B start from rest and move for equal time on a straight line. The particle A has an acceleration a for the first half of the total time and 2a for the second half. The particle B has an acceleration
2a for the first half and a for the second half. Which particle has covered larger distance?

 8

If a particle is accelerating, it is either speeding up or speeding down. Do you agree with this statement?