# Motion In A Plane

Assertion

Reason

## At the highest point, velocity of projectile will be in horizontal direction only.

A
Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
B
Both Assertion and Reason are true, but Reason is not the correct explanation of the Assertion.
C
Assertion is true, but the Reason is false.
D
Assertion is false, but the Reason is true.
Medium
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Assertion

Reason

## Because its horizontal component of velocity remains constant, while vertical component of velocity changes from point to point due to gravitational acceleration.

A
Both Assertion and Reason are true and the Reason is correct explanation of the Assertion.
B
Both Assertion and Reason are true, but Reason is not correct explanation of the Assertion.
C
Assertion is true, but the Reason is false.
D
Assertion is false, but the Reason is true.
Medium
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Assertion

Reason

## Time of flight depends on horizontal component and range depends on vertical component of velocity of projection.

A
Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
B
Both Assertion and Reason are true, but Reason is not the correct explanation of the Assertion.
C
Assertion is true, but the Reason is false.
D
Assertion is false, but the Reason is true.
Medium
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## If a particle moves in a circle, describing equal angles in equal intervals of time, the velocity vector:

A
Remains constant.
B
Changes in magnitude.
C
Changes in direction.
D
Changes both in magnitude and direction.
Medium
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Assertion

Reason

## Projectile motion is uniform motion along horizontal and accelerated motion along vertical.

A
Both Assertion and Reason are true and the Reason is correct explanation of the Assertion.
B
Both Assertion and Reason are true, but Reason is not correct explanation of the Assertion.
C
Assertion is true, but the Reason is false.
D
Assertion is false, but the Reason is true.
Medium
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## For a projectile, the physical quantities which remain constant are:

A
vertical component of velocity and kinetic energy.
B
potential energy and kinetic energy.
C
acceleration and horizontal component of velocity
D
potential energy and acceleration.
Medium
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