A man whose mass is m kg jumps vertically into air from sitting position in which his centre of mass is h1 from the ground. when his feet are just about to leave the ground his centre of mass is h2 from the ground and finally rises to h3 when he is at the top of the jump.what is the average upward force exerted by the ground on him?

Open in App

Solution

Suggest Corrections

Similar questions

Q. A man whose mass is

m

kg jumps vertically into air from a sitting position in which his centre of mass is at a height

h_{1}

from the ground. When his feet are just about to leave the ground his centre of mass is

h_{2}

from the ground and finally rises to

h_{3}

when he is at the top of the jump. What is the average upward force exerted by the ground on him?

Q. If a man of mass M jumps to the ground from a height h and his centre of mass moves a distance x in the time taken by him to 'hit' the ground, and the average force acting on him (assuming his retardation to be constant during his impact with the ground) is

If a man of mass M jumps to the ground from a height h and his centre of mass moves a distance of x during the impact, the average force acting on him (assuming his retardation to be constant during his impact with the ground) is

Q. A boy puts a heavy box of mass M on his head and jumps from the top of a multi-storied building to the ground. What is the force exerted by the box on the boy's head during his free fall? Does the force greatly increase during the period he balances himself after striking the ground?

Join BYJU'S Learning Program