State which of the following situations are possible and give an example for each of these A . An object with a constant acceleration but with zero velocity .B.An object moving in a certain direction with an acceleration in the perpendicular direction.
Answers
Answer:
Explanation:
1) Possible
When a body is thrown vertically upward in space, then at the highest point, thebody has zero velocity but the acceleration of the body will be equal to theacceleration due to gravity. ...
2)
possible
A body moving horizontally with an acceleration in vertical direction is possible in a projectile motion.
in projection bod follows parabolic path with acceleration acting verticallly downwards(gravity) at time of decsent n spplied acc.(time of acent)
3)
Yes, for e.g. in a circular motion if one is moving with a constant speed, the motion is still said to be accelerated motion as the dirction of velocity changes at every point of the path.
Answer:
Solution:(a) Possible
=greater thanWhen a ball is thrown up at maximum height, it has zero velocity, although it will have constant acceleration due to gravity, which is equal to 9.8 m/s2.
(b) Possible
= greater thanWhen a car is moving in a circular track, its acceleration is perpendicular to its direction.