. -.(a) How much tension must a rope withstand if it is used to accelerate a...
1. How much work W must be done on a particle with a mass of m to accelerate it from rest to a speed of 0.895c?(in units of mc^2)2. How much work W must be done on a particle with a mass of m to accelerate it from a speed of 0.895c to a speed of 0.990c?
How strong must the tension in a support rope be if the rope keeps a 50.0 N block at rest on a 40° frictionless ramp, as shown in the diagram? 50 N 40° Select one: a. 50.0 N b. 42.3 N С. 38.3 N d. 32.1 N
A rooe is tied to a box and used to pull the box A rope is tied to a box and used to pull the box 1.9 m along a horizontal floor. The rope makes an angle of 30° with the horizontal and has a tension of 5 N. The opposing friction force between the box and the floor is 1 N Part A How much work does gravity do on the box? Express your answer in Joules to one...
A 45 kg cart is pulled along by a rope that applies a 120 N force at 30 degree. How much work is done by the 120 N force as the cart moves 7 m? If the friction force on the cart is 50 N, how much work is done by the friction force? How much work is done by gravity? What is the net work done on the cart? If the initial speed of the cart was 5 m/s,...
3.) A 60.0 kg box is pulled by a 275 N force of tension provided by a rope pulled at an angle 30.0 degrees above the horizontal. The box moves 25.0 m horizontally as it is pulled by the rope. The coefficient of friction between the box and the ground is uk-0.20 a.) How much work does the rope do on the box? (5 pts) b.) How much work does friction do on the box? (5 pts) c.) How much...
How much work W must be done on a particle with a mass of m to accelerate it from rest to a speed of 0.891 c ? How much work W must be done on a particle with a mass of m to accelerate it from a speed of 0.891 c to a speed of 0.982 c ?
1. How much work must be done on a particle with a mass of m to accelerate it from rest to a speed of 8.6×10−2 c ? (Express the answer in terms of mc2.) 2. How much work must be done on a particle with a mass of m to accelerate it from a speed of 0.900c to a speed 0.986 c ? (Express the answer in terms of mc2.)
How much work (in J) is done to accelerate a car which has a mass of 3700 kg from a speed of 17 m/s to a speed of 30 m/s?
A truck is towing a 1200 kg car. The rope being used can only with stand a tension of 800 N a. How much work does the truck do in towing the car 20m? b. What is the maximum acceleration of the truck before the rope breaks?
How much work W must be done on a particle with a mass of m to accelerate it from rest to a speed of 0.907 c ? Express your answer as a multiple of mc^2 to three significant figures. How much work W must be done on a particle with a mass of m to accelerate it from a speed of 0.907 c to a speed of 0.980 c ? Express your answer as a multiple of mc^2 to three...