Question

9.
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 with an acceleration but with uniform
speed.
(c) an object moving in a certain direction with an
acceleration in the perpendicular direction.
icolor orbit of radius​

Answer 1

Answer:

a.possible

b.possible

c.possible

Step-by-step explanation:

EXAMPLES

a. vertical projection of object.

when an object is thrown vertically upwards then at certain maximum height velocity becomes zero but constant acceleration (g- acceleration due to gravity) is still acting on it in downward direction.

b.circular motion.

if a body moves in circular path then it has uniform speed but due to change in direction velocity changes so motion is accelerated.

c.projectile motion

when an object is thrown horizontally into air making certain angle with horizontal i.e, earth then the object moves in horizontal direction and acceleration(g) is perpendicularly downward.

in circular motion also, velocity is always perpendicular to acceleration.

hope it helps...