Question

what is momentum ,acceleration..?? And please tell me meaning of hertz​

Answer 1

Answer:

Momentum Conservation and Newton's Laws

Recall that acceleration is rate of change of velocity, so we can rewrite the Second Law: force = mass x rate of change of velocity. Now, the momentum is mv, mass x velocity. ... rate of change of momentum = mass x rate of change of velocity

Explanation:

Hertz is a unit just like gram ,litre etc

Answer 2

Answer:

$\huge\underline\bold\red{AnsWer}$

$\huge \boxed{ \blue{Momentum}}$

Momentum, product of the mass of a particle and its velocity. Momentum is a vector quantity; i.e., it has both magnitude and direction. Isaac Newton's second law of motion states that the time rate of change of momentum is equal to the force acting on the particle.

$\huge \boxed{ \blue{Acceleration}}$

Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.

$\huge \boxed{ \blue{Hertz}}$

a unit for measuring the frequency of sound waves