Home
Class 11
PHYSICS
An open knife edge of mass 200g is dropp...

An open knife edge of mass 200g is dropped from height 5m on a cardboar. If the knife edge penetrates a distance 2 m into the cardboard. Find the average resistance offered by the cardboar to the knife edge (in N). `(g = 10 m//s^(2))`

Text Solution

Verified by Experts

The correct Answer is:
7
Promotional Banner

Topper's Solved these Questions

  • WORK, POWER AND ENERGY

    DC PANDEY|Exercise D Matrix Matching Type Questions|10 Videos

  • WORK, ENERGY AND POWER

    DC PANDEY|Exercise MEDICAL ENTRACES GALLERY|33 Videos

Similar Questions

Explore conceptually related problems

An open knife edge of mass M is dropped from a height 'h' on a wooden floor if the blade penetrates a distance 'S' into the wood average resistance offered by the wood to the blade is:

An open knife of mass m is dropped from a height h on a wooden floor. If the blade penetrates up to the depth d into the wood. The average resistance offered by the wood to the knife edge is to the depth d into the wood, the average resistance offered by the wood to the knife edge is .

An iron nail of mass 0.2 kg is dropped from a height h=1m from level of a sand bed. If it penetrates through a distance x=0.1m in the sand before coming to rest. Calculate the average force exerted by the sand on the nail. (Take g= 10m//s^(2) )

When a bullet of mass 10 g and speed 100 m/s penetrates up to distance 1 cm in a human body at rest. The resistance offered by human body is :

A stone of mass 5kg falls from the top of a cliff 50m high and buries 1m deep in sand . Find the average resistance offered by the sand and the time it takes to penetrate .

A block of 200 g mass is dropped from a height of 2 m on to a spring and compress the spring to a distance of 50 cm. The force constant of the spring is

A ball of mass 10 gm dropped from a height of 5m hits the floor and rebounds to a height of 1.25m. If the ball is in contact with the ground for 0.1s, the force exerted by the ground on the ball is (g=10 m//s^(2))