Assertion: If a body is momentarily at rest, it means that force or acceleration are necessarily zero at that instant.
Reason: Force on a body at a given time is determined by the direction of motin only.

Assertion : The moment after a stone is released out of an accelerated train, there is no horizontal force or acceleration on the stone. Reason : Force on a body at a given time is determined by the situation at the location of the body at that time.

Assertion : The moment after a stone is released out of an accelerated train, there is no horizontal force or acceleration on the stone. Reason : Force on a body at a given time is determined by the situation at the location of the body at that time.

If a body is not at rest, the net external force acting on it cannot be zero. is it true or false?

Assertion : A body can have acceleration even if its velocity is zero at a given instant of time. Reason : A body is momentarily at rest when it reverses its direction of motion.

Assertion : A body can have acceleration even if its velocity is zero at a given instant of time. Reason : A body is momentarily at rest when it reverses its direction of motion.

Assertion : A body can have acceleration even if its velocity is zero at a given instant of time. Reason : A body is momentarily at rest when it reverses its direction of motion.

(A) : A body can have acceleration even if its velocity is zero at a given instant of time. (r) : A body is momentarily at rest when it reverses its direction of motion.

(A) : A body can have acceleration even if its velocity is zero at a given instant of time. (r) : A body is momentarily at rest when it reverses its direction of motion.