Question

9) State which cut te tollowing situation
are possible and give an example
Tor each out these?
O An object with a constant acceleration
but zero velocity.
(11) An object is moving with acceleration
but with uniform speed.
iii) An object is moving in a certain
direction with acceleration in the
perpendicular direction.​

Answer 1

(a) The given statement is possible.

• The word acceleration implies a change in the object’s velocity.

• One example of this is vertical particle projection.

• When an object is thrown upwards, the maximum height velocity of the body is zero, but constant acceleration due to gravity is still working.

(b)The given statement is possible.

• The object can move in a certain path with a perpendicular acceleration, in the case of circular motion. 

• When an object is moving along a circular motion its path is along the circle tangent but the centripetal acceleration is towards the circle radius. 

• We understand that with the radius, a tangent still makes a right angle.

• So when the object in the circular motion, the velocity and accelerations are in a mutually perpendicular direction.

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