Home
Class 9
PHYSICS
A girl having mass of 35 kg sits on a tr...

A girl having mass of 35 kg sits on a trolley of mass 5 kg. The trolley is given an initial velocity of 4m//s by applying a force. The trolley comes to rest after traversig a distance of 16m. (a) How much work is done on the trolley ? (b) How much work is done by the girl ?

Text Solution

AI Generated Solution

To solve the problem, we will break it down into two parts: (a) calculating the work done on the trolley and (b) calculating the work done by the girl. ### Given Data: - Mass of the girl (m_g) = 35 kg - Mass of the trolley (m_t) = 5 kg - Initial velocity of the trolley (u) = 4 m/s - Final velocity of the trolley (v) = 0 m/s (comes to rest) - Distance traveled (s) = 16 m ...
Promotional Banner

Topper's Solved these Questions

  • WORK AND ENERGY

    PRADEEP|Exercise Very short Answer Question|21 Videos

  • WORK AND ENERGY

    PRADEEP|Exercise Short Answer Questions 2 marks|10 Videos

  • WORK AND ENERGY

    PRADEEP|Exercise Short Answer Questions|11 Videos

  • SOUND

    PRADEEP|Exercise Model Test (sec - B)|12 Videos

Similar Questions

Explore conceptually related problems

How much work is done when a body of mass m is raised to a height h above the ground?

55,000 J of work is done to move a rock 25 m. How much force was applied ?

A factory worker pushes a 25.0 kg crate downward at an angle of 30^(@) below the horizontal a distance of 6.0 m along a level floor. (a) What magnitude of force must the worker apply to move the crate at constant velocity, if the coefficient of kinetic friction between the crate and floor is 0.3 ? (b) How much work is done on the crate by this force when the crate is pushed a distance of 6.0 m? (c) How much work is done on the crate by friction during this displacement ? (d) How much work is done by the normal force and by gracity ? (e) What is the total work done on the crate ? Take g=10m//s^(2)

(a) Which of the following does the most work : a force of 3N acting through a distance of 3 m or a force of 4N acting through a distnace of 2m? (b) How much work is done by the centripetal force?

A boy of mass 60 kg running at 3//s jumps on to a trolley of mass 140 kg moving with a velocity of 1.5m//s in the same direction . What is their common velocity?

A 1500-kg elevator moves upward with constant speed through a vertical distance of 25 m. How much work was done by the tension in the elevator cable ?

If a person moves a trolley for a distance of 10 m with a force of 50 , then the work done is:

A man of mass 60kg jumps from a trolley of mass 20kg standing on smooth surface with absolute velocity 3m//s . Find velocity of trolley and total energy produced by man.

An object of mass 4 kg falls from rest through a vertical distance of 20 m and reaches with velocity of 10 (m)//(s) on ground. How much work is done by air friction?

An object of mass 5 kg falls from rest through a vertical distance of 20 m and reaches a velocity of 10 m/s. How much work is done by the push of the air on the object ? (g=10m//s^(2)).