


Dear Tutors, please help. please look carefully at the questions before attempting. total of 3 questions....
help pls
Question 3 (a) A 60 kg block is at rest on a smooth horizontal surface as shown in Fig. 23a. A force of 90 N acting at an angle of 35° is applied to the block for 7s. Determine the final velocity and the normal force which the smooth surface exerts on the block during the time interval F-90N u=0 Fig. 23a (5 marks) (b) A ball of mass 625 g hits the ground with the following velocity...
pls help
Question 2 (a) Fig. Q2a shows a 1.8 kg block A placed in front of a compression spring, initially compressed by 40mm from its neutral position. Given that the spring constant k= 6000 N/m and the kinetic coefficient of friction between block (A) and the floor is pk = 0.1. The block A is released from rest and travels towards the right Compression Spring 40 mm wwww! A 00 Fig. 2a Determine the velocity of the block when...
Block A of mass, mA = 1.7 kg is shot from a spring device of spring constant, k = 700 N/m along a frictionless horizontal surface. The initial compression of the spring is 0.300 m. The shot makes the block rise to another horizontal level at a height h= 1m above the first. On this horizontal it collides with another stationary block B of mass mB = 3.5 kg. The blocks stick together and encounter a rough surface. The blocks...
A light spring of force constant 3.90 N/m is compressed by 8.00 cm and held between a 0.250 kg block on the left and a 0.520 kg block on the right. Both blocks are at rest on a horizontal surface. The blocks are released simultaneously so that the spring tends to push them apart. Find the maximum velocity each block attains if the coefficient of kinetic friction between each block and the surface is the following. In each case, assume...
A light spring of force constant 4.15 N/m is compressed by 8.00 cm and held between a 0.250 kg block on the left and a 0.530 kg block on the right. Both blocks are at rest on a horizontal surface. The blocks are released simultaneously so that the spring tends to push them apart. Find the maximum velocity each block attains if the coefficient of kinetic friction between each block and the surface is the following. In each case, assume...
A block of mass 0.528 kg slides with uniform velocity of 3.60 m/s on a horizontal frictionless surface. At some point, it strikes a horizontal spring in equilibrium. If the spring constant is k = 26.1 N/m, by how much will the spring be compressed by the time the block comes to rest? b. What is the amount of compression if the surface is rough under the spring, with coefficient of kinetic friction µk = 0.411?
please answer question 3 and 4.
l bect is pushed across a surface with a coefficient of kinetic friction between object and surface of 27. If the object slid with a speed of 3 how far will it go before it comes to rest? 3 A 4.2 kg car is lifted 25 m vertically with an acceleration a 265g by a single cable. Determine the net work done on the load. A box of mass 6.0 kg accelerates from rest...
A
block of mass 3 kg goes down at a velocity 3.73 over an inclinated
plane with an angle of 40º when it is at a distance of 1m of a
spring with a constant of 251N/m. the coefficient of kinetic
friction betweeen the block and all of the surface is 0.2.
calculate the maximum compression of the spring .
A solid block of mass 60.0 kg starts from rest and slides down a rough surface with a length of 10.0 m where the coefficient of friction is uk=0.20. The surface is inclined at 40.0°. After sliding 10 meters down the incline it hits a spring with a spring constant of ks = 550.0 N/m. Draw a freebody Diagram indicating all forces. Write out and solve the force and energy equations. How high is the block above the spring at...
I need help on part G!!!!! Blocks A and B are on a frictionless horizontal surface. Block A is to the left of block B. Both blocks are initially at rest. Block A has a mass of 2.1 kg and B has a mass of 1.5 kg. Block A is struck from the left with a hammer. The average force of this impact is 210 N and lasts for 0.09 seconds. Block A slides to the right, strikes and sticks...