Home
Class 11
PHYSICS
A block of mass 30.0 kg is being brought...

A block of mass 30.0 kg is being brought down by a chain. If the block acquires as speed of `40.0 `cm/s` in dropping down 2.00 m ,find the work done by the chain during the process.

Text Solution

AI Generated Solution

To solve the problem, we will use the work-energy theorem, which states that the work done by all forces acting on an object is equal to the change in its kinetic energy. ### Step-by-step Solution: 1. **Identify the Given Data:** - Mass of the block (m) = 30.0 kg - Final speed (v) = 40.0 cm/s = 0.40 m/s (convert cm/s to m/s) - Distance dropped (h) = 2.00 m ...
Promotional Banner

Topper's Solved these Questions

  • WORK, ENERGY & POWER

    DC PANDEY ENGLISH|Exercise Exercise 9.3|2 Videos

  • WORK, ENERGY & POWER

    DC PANDEY ENGLISH|Exercise Exercise 9.4|5 Videos

  • WORK, ENERGY & POWER

    DC PANDEY ENGLISH|Exercise Exercise 9.1|10 Videos

  • WAVE MOTION

    DC PANDEY ENGLISH|Exercise Integer Type Question|11 Videos

  • WORK, ENERGY AND POWER

    DC PANDEY ENGLISH|Exercise MEDICAL ENTRACES GALLERY|33 Videos

Similar Questions

Explore conceptually related problems

A block of mass 2 kg is being brought down by a string. If the block acquires a speed 1(m)//(s) in dropping down 25 cm, find the work done by the string in the process.

A man moves on a straight horizontal road with a block of mass 2 kg in his hand. If he covers a distance of 340 m with an acceleration of 0.5 m/s^2 find the work done by the man on the block during the motion.

A block of mass 5kg is being raised vertically upwards by the help of a string attached to it. It rises with an acceleration of 2ms^-2 . Find the work done by the tension in the string if the block rises by 2.5m . Also find the work done by the gravity and the net work done.

A block of mass m is moving down with constant velocity along an inclined plane of inclination theta . What is the work done by external force in pulling the block along the inclined plane through a height h with constant velocity?

A block of mass 100g is moved with a speed of 5.0 m/s at the highest point in a closed circular tube of radius 10 cm kept in a vertical plane. The cross sectiion of th tube is such that the block just fits in it. The block makes wseverl oscillations inside the tube and finally stops at the lowest point. find teh work done by the tube on the block during the process

A block of mass 0.2 kg is suspended from the ceiling by a light string. A second block of mass 0.3 kg is suspended from the first block through another string. Find the tensions in the two strings. Take g=10 m/s^2 .

A block of mass 2.0 kg is pushed down an inclined plane of inclination 37^0 with a force of 20N acting parallel to the incline. It is found that the block moves on the incline with an acceleration of 10 m/s^2 . If the block started from rest, find the work done a. by the applied force in the first second b. by the weight of the block in the first second and c. by the frictional force acting on the block in the first second. Take g=10 m/s^2 .

A block of mass 0.1 kg attached to a spring of spring constant 400 N/m is putted rightward from x_(0)=0 to x_(1)=15 mm. Find the work done by spring force.

A block of mass 2.0 kg is pushed down an inclined plane of inclination 37^0 with a force of 20N cting parallelto the incline. It is found tht the block moves on the incline with an acceleration of 10 m/s^2 . If the blcok started from rest, find the work done a. by the applied force in the first second b. by the weight of the block in the first second and c. by the frictional force acting on the block in the first second. Take g=10 m/s^2 .

As shown in the figure a block of mass 'm' is placed on a smooth wedge moving with constant acceleration such that block does not move with respect to the wedge. Find work done by the net force on the block in time t. (Initial speed is 0)