CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Second Law of Motion

Assertion :If...

Question

Assertion :If the net force on a rigid body is zero, it is either at rest or moving with a constant linear velocity. Nothing else can happen. Reason: Constant velocity means linear acceleration is zero.

A

If both Assertion and Reason are true and Reason is the correct explanation for Assertion.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

If both Assertion and Reason are true but Reason is not the correct explanation for Assertion.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

Assertion is false but Reason is correct.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

Both Assertion and Reason are false.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B If both Assertion and Reason are true but Reason is not the correct explanation for Assertion.
According to Newton's first law. If the resultant force on the rigid body is equal to zero then it will either in rest or will move with uniform velocity.
Both assertion and reason are true but the reason is not the correct explanation. (Ans B)

Suggest Corrections

thumbs-up

0

Similar questions

Q. Assertion: Vector product of two vectors is an axial vector.
Reason: For a body under rotation, if

\to v =

instantaneous velocity,

\to r =

radius vector and

\to ω =

angular velocity, then

\to ω = \to v \times \to r

.

Q. Assertion: If dot product and cross product of

\to A

\to B

are zero, it implies that one of the vector

\to A

\to B

must be null vector.
Reason: Null vector is a vector with zero magnitude.

Q. Assertion : Amount of cyanocobalamine required daily is 3 mcg
Reason : Its deficiency causes pernicious anaemia

Q. Assertion: C₄ – photosynthetic pathway is more efficient than C₃ pathway Reason: Photorespiration is suppressed in C₄ plants

Q. (i)
Assertion: A circle is not a rectilinear figure.
Reason: A figure formed by straight lines only is called a rectilinear figure.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.
(ii)
Assertion: All right angles are equal to one another.
Reason: A unique line passes through a single point.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Second Law of Motion

PHYSICS

Watch in App

explore_more_icon

Explore more

Second Law of Motion

Standard IX Physics

Join BYJU'S Learning Program

CrossIcon