dattarajesh2018

Can you explain the concept of momentum and its conservation in collisions?

A bullet of mass 10 g is fired with an initial speed of 285 m/s into a wooden block that is initially at rest. The bullet becomes lodged in the block, and the two slide together on the floor for a distance of 1.4 m before coming to rest . If the coefficient of friction between the block and the floor is 0.40, what is the mass of the block?

A 5.00 kg block of wood is resting on a table top whose kinetic friction coefficient is 0.315. A 1.00 kg marble block is "fired" at speed 10.0 m/s directly towards the block, where a collision takes place. After the collision, the markable block has a rebound speed of 5.0 m/s. How fast will the wooden block the moving just after the collision ? and after the collision, the wooden block will slide along the table top until coming to a final stop how far will it travel before coming to the final stop " use work-energy to solve this one " ?

A heavy wooden block rests on a flat table and a high-speed bulletis fired horizontally into the block, the bullet stopping in it.How far will the block slide before coming to a stop? The mass ofthe bullet is 12.4 g, the mass of the block is 11.1 kg, thebullet's impact speed is 880 m/s, and the coefficient of kineticfriction between the block and the table is 0.220. (Assume that thebullet does not cause the block to spin.)
cm

In the above problem, the coefficient of kinetic friction betweenthe block and the table is 0.35. How far along the table will theblock slide before coming to rest ?

Previous Problem:

A bullet of mass 180 g is fired horizontally from a gun with avelocity of 825 m/s into a wooden block of mass 3.5 kg sitting on ahorizontal table. If the bullet embeds itself into the block, findthe velocity of the block after being hit by the bullet.

Answer: 40.35 m/s

A bullet of mass 14 g is fired horizontally from a gun with a velocity of 950 m/s into a wooden block of mass 9.0 kg sitting on a horizontal table. If the bullet embeds itself into the block, find the velocity of the block after being hit by the bullet.

A bullet of mass 180 g is fired horizontally from a gun with avelocity of 825 m/s into a wooden block of mass 3.5 kg sitting on ahorizontal table. If the bullet embeds itself into the block, findthe velocity of the block after being hit by the bullet.

A bullet with mass 60.0 g is fired with an initial velocity of 575m/s from a gun with mass 4.50 kg. What is the speed of the recoilof the gun?


A 60.0 g bullet is fired from a gun and has 3150 J of kineticenergy. What is the velocity?


A plane traveling North at 200 m/s turns and then travels South at200 m/s. Its change in velocity is:

A bullet of mass 0.65 kg is fired from a 4.0 kg gun with a speed of 5.0 * 10^2 m/s. What is the recoil velocity of the gun?

A 4.0g BULLET IS FIRED FROM A 4.50 kg GUN WITH A MUZZLE VELOCITY OF 625 m/s. WHAT IS THE SPEED OF THE RECOIL OF THE GUN?

A3.0kg block of wood rests on the muzzle opening of averticallyoriented rifle, the stock of the

rifle being firmly planted on the ground. When the rifle is fired,a10.0 g bullet (velocity 800 m/s

upward) becomes completely embedded in the block. (a) Findthevelocity of the block/bullet system

immediately after the collision (Δt=0 for the collision).(b)Ignoring air resistance, find how high the

block/bullet system rises above the muzzle opening of therifle.

[Answer: (a) 2.66 m/s; (b) 0.36 m]

A bullet is fired upward into the air and reaches a height of 2500 feet. What is the initial velocity (muzzle velocity) in mph?

Define the wheatstone bridge