e rough surface that cross the beam?

Q: Problem 80. A tennis player strikes the tennis ball with her racket while the ball is still rising.…

A:

Q: A person A is trying to keep his balance while on sled B that is sliding down an icy incline.…

A:

Q: Five identical boxes with the same speeds slide along a frictionless horizontal surface. The mass of…

A: Given data: Mass of each box, m = 10 kg. Consider block 1: F to the right and d = 7 m to the…

Q: 3. A mass m (2.0 kg) is attached to a horizontal spring of spring constant k (25 N/m) which is held…

A:

Q: Part A The 190-kg crate rests on the ground for which the coefficients of static and kinetic…

A:

Q: 4) A spacecraft designed for Martian impact is on a course heading directly toward the center of the…

A: Given:The distance of spacecraft from the surface of the planet, The initial velocity of the…

Q: A 1.8-kg collar is attached to a spring with unstretched length of 1.03 m. The collar moves in the…

A: Given: Mass of the collar→m=1.8 Kg Radius of the ring→r=1.03 m Unstretched length of the…

Q: The package has a mass of 0.3 kg and slides down the chute from point A at rest. If the kinetic…

A: (a) m =0.3 kg     acceleration, a =gsinθ-μgcosθ                            = 5.54 m/s2   VB =2aS…

Q: C, causing them to slide on the track, but are not applied on the wheels of car A. The coefficient…

A: velocity of subway train initially =25 mi/h=36.6667 ft/scoefficient of kinetic friction(mu)=0.35

Q: A 0.5 kg block sides in a smooth slot in a vertical plane. A constant force P is applied as shown.…

A:

Q: A 150kg block is pulled in the horizontal surface by a force F in a direction 37° above the…

A: Given data: ◆ The mass of the block: m = 150 kg ◆ The angle made by pulling force with horizontal: θ…

Q: In the figure, a block slides down an incline. As it moves from point A to point B, which are 5.1 m…

A: Given data as per the question Increase in kinetic energy =41j Friction force =9.7N

Q: |Q.1. A block of mass m = 0.5 kg is pushed against a horizontal spring of spring constant k 450 N/m…

A: Given, m = 0.5 kg k = 450 N/m vB = 12 m/s

Q: A test rocket is fired straight up from rest with a net acceleration of 20.0 m/s². After 4.00…

A: Given data: u=0 m/sa=20 m/s2t=4 sec Need to determine the maximum elevation (height) does the rocket…

Q: (a) Find the coefficient of kinetic friction between the blocks. (b) Find the acceleration of the…

A: let the frictional force be fN so F-f=ma or 310-60*2=f I.e f=190 N so 60*9.8*k=190 Therefore…

Q: When the 150-lb skier is at point A he has a speed of 5 ft/s. When the skier reaches point B on the…

A: Law of conservation of energy: Energy can neither be created nor be destroyed but it can be…

Q: PRACTICE PROBLEM 8.2 two minecarts are connected as shown below. Friction is negligible. Assume that…

A: Itis asked to write the differetial equation of the system shown above

Q: Cars B and C are waiting at a stop sign when box truck A (whose driver had fallen asleep) rear- ends…

A: d=24 ft = 7.315 mFind the velocity of system AB after the impactFind the velocity of system ABC…

Q: A small 5-kg sphere moves at a constant speed along the horizontal circular path. Note that ACB is a…

A:

Q: Q5. As shown in the image below, two objects, A and B, are connected using the cable and pulley…

A: Given : The velocity of B =20 ms( downward ) Free body diagram : Here T is the tension in the…

Q: The conveyor belt shown below runs at a constant speed vb, uphill at an angle 0 relative to…

A: Given : To find: Plots of displacement, velocity and acceleration

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.