On a frictionless canvas a 5.5 kg block can slide along the x-axis and is subjected to a force of 80 N in the +x direction while it travels 10 m. The block is initially at rest. (c) By impulse-momentum theorem, solve the final speed after the block has moved 10 m.
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- A 4.10-kg steel ball strikes a wall with a speed of 13.0 m/s at an angle of ? = 60.0° with the surface. It bounces off with the same speed and angle (see figure below). If the ball is in contact with the wall for 0.200 s, what is the average force exerted by the wall on the ball?() THE FOLLOWING QUESTIONS ARE BASED ON THE INFORMATION GIVEN BELOW. Block m, of mass 15 kg moving with velocity v = 33 m/s on a frictionless plane collides block mg which is connected to block m3 by a long. massless spring with spring constant k = 7000 N/m: see the figure. Each of blocks mą and mg has a mass of 5 kg. Before the collision, blocks mą and mg are stationary and the spring is relaxed. m2 Frictionless - For parts A. B and Cassume that the collision of blocks m, and ma is completely inelastic. (Because the spring is relaxed before the collision. block mạ does not move at the instant of impact therefore (m, +m2) must move through a finite displacement before any force acts on mg and cause it to move) • For parts D and Eassume that the collision of blocks m, and m, is elastic. (Because the spring is relaxed before the collision. block my does not move at the instant of impact therefore mạ must move through a finite displacement before any force acts on mg and cause it to move)…Problem: You are lead engineer on the design of a crash test apparatus that verifies collisions of varying types. A m = 2 kg mass, when suspended above from a light-weight wire of L = 1.5 m, is first released at an angle of 90°, and correspondingly a height h = L. The tethered ball swings toward the waiting block of M = 4 kg. collides, then rebounds back to an angle of 0 = 32°. In this case, the collision between m and M is elastic, which prompts M's rightwards motion a distance of Ax = 2.1 m, from which the coefficient of kinetic friction between the block and surface on which it is slid is determined. m L h 0 M
- Frictionless In Figure, block 1 of mass m1=1.5kg slides from rest along a frictionless ramp from height h =2.50 m and then collides with stationary block 2, which has mass m2 =2.00m1. After the collision, block 1 and block 2 slides combine together a region where the coefficient of kinetic friction is 0.500 and comes to a stop in distance d within that region. (c) Calculate the distance d.Help needed.Block A (with mass 10 kg) slides along a frictionless floor with a speed of 0.75 m/s and collides with Block B (with mass 12 kg) which was at rest and is attached to a spring with spring constant 24 N/m. The blocks stick together after the collision; what is the maximum compression of the spring?
- Particle A has mass m and moves directly to the right with speed v > 0. Particle B has four times the mass of Particle A and moves directly to the right with half the speed of Particle A. Which of the following statements are true? (Pick two.) Particle A has greater momentum than Particle B. Particle B has greater momentum than Particle A. Both particles have the same momentum. O Particle A has greater kinetic energy than Particle B. O Particle B has greater kinetic energy than Particle A. Both particles have the same kinetic energy.A 0.663-kg ball, initially moving with a speed of 3.09 m/s, bounces off a wall and then moves with a speed magnitude half of its original directed in the opposite direction. If the ball is in contact with the wall for 5.4 ms, what is the magnitude of the average force that the wall exerts on the ball? Express your answer in two decimal places, in Newtons.A baseball has a mass of 0.140 kg, and it is pitched towards home plate at a speed of 48.0 m/s. Assume that the ball is pitched horizontally and that the ball is hit horizontally back in the opposite direction. If the bat exerts an average force of 9100 N for 2.80 ms, what is the final speed of the ball in m/s?
- A 2.76-kg steel ball strikes a massive wall at 10.0 m/s at an angle of θ = 60.0° with the plane of the wall. It bounces off the wall with the same speed and angle (see the figure below). If the ball is in contact with the wall for 0.176 s, what is the average force exerted by the wall on the ball?Particle A has mass m and moves directly to the right with speed v > 0. Particle B has one fourth the mass of Particle A and moves directly to the right with twice the speed of Particle A. Which of the following statements are true? (Pick two.) Particle A has greater momentum than Particle B. Particle B has greater momentum than Particle A. Both particles have the same momentum. Particle A has greater kinetic energy than Particle B. Particle B has greater kinetic energy than Particle A. Both particles have the same kinetic energy.When some cars are advertised, they quote a "stopping distance" from some speed to zero. The mass of the car and this value of "some speed" give a measure of initial motion, but we aren't necessarily told the mass. Using the stopping distance, one can directly calculate what physical quantity provided by the brakes? A impulse B chemical potential energy C power D kinetic energy E force F velocity G work H acceleration I mass