Advertisements
Advertisements
प्रश्न
The linear momentum of a ball of mass 50 g is 0.5 kg m s-1. Find its velocity.
Advertisements
उत्तर
Linear momentum = 0.5 kg m/s
Mass, m = 50 g = 0.05 kg
Velocity = Linear momentum/mass
= 0.5/0.05 m/s
= 10 m/s -1
APPEARS IN
संबंधित प्रश्न
Explain why a cricketer moves his hands backwards while holding a catch.
Two blocks of equal mass m are tied to each other through a light string. One of the blocks is pulled along the line joining them with a constant force F. Find the tension in the string joining the blocks.
A monkey is climbing on a rope that goes over a smooth light pulley and supports a block of equal mass at the other end in the following figure. Show that whatever force the monkey exerts on the rope, the monkey and the block move in the same direction with equal acceleration. If initially both were at rest, their separation will not change as time passes.
Show that the rate of change of momentum = mass × acceleration. Under what condition does this relation hold?
How can Newton's first law of motion be obtained from the second law of motion?
The unit of linear momentum is :
A force acts for 10 s on a stationary body of mass 100 kg, after which the force ceases to act. The body moves through a distance of 100 m in the next 5 s. Calculate: The velocity acquired by the body.
A car is moving with a uniform velocity 30 ms-1. It is stopped in 2 s by applying a force of 1500 N through its brakes. Calculate the following values : The change in momentum of car.
Calculate the velocity of a body of mass 0.5 kg, when it has a linear momentum of 5 Ns.
Define Newton’s second law of motion.
