Q2: A small block (block 1) of mass m, attached to an ideal string of length L, is initially held so that the string is taut and horizontal at height L above a frictionless table, as shown in Fig.2. A second small block (block 2) of mass 3m is placed on the table right under the point of attachment of the string holding block 1. The tabletop is at height 2L above the floor. Block 1 is then released from rest and collides elastically with block 2 at time t=0. The acceleration due to gravity has magnitude g and air resistance is negligible.  a.Determine the time t2 at which block 2 hits the floor. b. Determine the horizontal distance traveled by block 2 as a projectile. c. Determine the speed and direction of motion of block 1 right after the collision.

Q: Q2. An 80 kg dog is lying on the floor at rest. The coefficient of kinetic friction between the dog…

A: We are given force by person. We first find the work done by the person. This is done by finding net…

Q: QUESTION 1 An 8-kg block slides 150mm from rest down the 25-degree plane. The spring has a value of…

A:

Q: An object of mass m is at rest at the top of a smooth slope of height h and length L. The…

A: Total energy of the system at top point is due to the gravity.  And just before reaching the bottom…

Q: A block of mass M is attached to the lower end of a vertical spring. The spring is hung from the…

A: Mass of block= M Spring constant = k

Q: An all-star cheerleading team throws a 40 kg flyer cheerleader into the air from an initial position…

A: We know that time to reach maximum height of a projectile is given as  T=ug Where u is initial speed…

Q: IP A 2.6 kg block slides with a speed of 2.5 m/s on a frictionless horizontal surface until it…

A: Have a look dear

Q: A roller-coaster car shown in the figure below is pulled up to point 1 where it is released from…

A:

Q: Problem 19 Part (a)  What is the speed of the crate, in meters per second, just after it leaves the…

A: Step 1: Draw the FBD and Compute the acceleration of the block on the 1st scenario (inclined plane)…

Q: Problem 5: The force required to compress a non-standard spring varies as the spring is compressed,…

A: Given : x1 = 15 cm x2 = 45 cm x3 = 65 cm x4 = 95 cm F1 = 140 N F2 = -55 N

Q: A 1.38 kg piece of cheese is placed on a vertical spring of negligible mass and force constant k =…

A:

Q: veights of the boxes and the applied horizontal force for each case are given in the indicated…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: of the ski hill) of 46.4 meters. There is -6610 Joules of energy dissipated due to air resistance…

A:

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: Given, weight of the skier is W=150lb And function yx=75cosπ100x At point A the speed of the skier…

Q: Part G What is the period T ? Part H How much time t does the block take to travel from the point…

A: Given Consider a block of mass m on frictionless  horizontal surface attached to a spring with force…

Q: A man pushing a crate of mass m = 92.0 kg at a speed of v = 0.875 m/s encounters a rough horizontal…

A:

Q: Two blocks with the same mass are released from the top of two inclined planes of the same height.…

A: let the mass = m θ1 = 30oθ2 = 60o

Q: The 40 kg crate is traveling to the right with an initial v0=1.2 m/s, when a person begins to pull…

A: Given, mass of block = 40 kg initial velocity = 1.2 m/s

Q: 1) A 3.15-kg block is acted on by a 24.0-N force that acts at 37.0° below the horizontal, as shown…

A:

Q: When the velocity v of an object is very large, the magnitude of the force due to air resistance is…

A:

Q: 4. A 4 kg large box is brought to a stop from a speed of 5 m/s due to friction and a large spring…

A:

Q: You push a 2.0 kg block against a horizontal spring, compressing the spring by 15 cm. Then you…

A:

Q: The kinetic friction coefficient between a hockey puck and ice is 0.113. The puck slides a distance…

A: Step 1:Step 2:

Q: A person with mass m is skateboarding across level ground on earth with a speed vo when they come to…

A: mass = m height = h distance along the slope = d magnitude of frictional force = Ffinitial speed =…

Q: If the average force of friction is equal to 0.15 of its weight, with what speed will it reach point…

A: The speed of car at point 1 is1.30m/sThe frictional force= 0.15 *weight of the car=The distance…

Q: Sam, whose mass is 80 kg, takes off across level snow on his jet-powered skis. The skis have a…

A: Given: m=80 kg FT = 160 N t1 = 15 sec μ=0.1

Q: A basketball of mass m = 0.65 kg is released from rest at a height h; hits the ground, and bounces…

A:

Q: Part A Ignoring the mass of the spring, what is the mss mmm of the fish? Express your answer in…

A: Answer=

Q: Shown in the figure below is a set of two masses on a track. The regions with the solid black line…

A:

Q: Froghoppers may be the insect jumping champs. These 6-mm-long bugs can spring 70 cm into the air,…

A:

Q: Calculate Tarzan's speed just before he reaches Jane. You can ignore air resistance and the mass of…

A: Given: L = length of vine = 11 m θ1 = initial angle with vertical = 45o θ2 = final angle with…

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.