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Carts of different masses are pulled along a flat surface. The table shows some variables for each cart.
Which two carts experience the same net force?
-
Carts 1 and 2
-
Carts 1 and 3
-
Carts 2 and 3
-
Carts 2 and 4
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- A block of ice (m = 15.0 kg) with an attached rope is at rest on a frictionless surface. You pull the block with a horizontal force of 95.0 N for 1.54 s. a. Determine the magnitude of each force acting on the block of ice while you are pulling. b. With what speed is the ice moving after you are finished pulling?An object weighs 3200 lb. What is the object's weight in N? NA person is trying to lift a box off the floor. The box has a mass of 55kg and the person can lift with a force of300N.a. Can the person lift the box?b. Find the normal force acting on the box.
- A person is trying to lift a box off the floor. The box has a mass of 55kg and the person can lift with a force of300N 2. A second person comes to help lift the box and applies a force of 300N.a. Can they lift the box?b. What is the normal force on the ground?c. If they can lift the box, what would be the acceleration of the box?Cabinet of mass (40 kg) rests on a rough horizontal floor. If you pulled the cabinet with a horizontal force of (N 200), the coefficient of kinetic friction between the cabinet and the floor (0.4), and the acceleration of free fall (10 m / s2), calculate the amount of: a. The kinetic friction force acting on the cabinet. B . Treasury acceleration.Components of a force at different pairs of axes: A force T = 600 N. a. Find the components of Force T with respect to x' and y' axis. b. Find the components of Force T with respect to x and y axis.
- A 15kg object is being pushed to the right across a surface, that has a coefficient friction of 0.13. a. Indicate what forces are acting on the object, and in which directions they are acting. b. Find the gravitational force on the object. c. Find the normal force on the object. d. Find the force of friction.6. A man pulls a 50 kg box at constant speed across the floor. He applies a 200 N force at an angle of 30°. Force diagram for the box: 30 a. Write an equation for all the forces and components of force on the box in the vertical direction b. Calculate the size of the normal force on the box. c. Write an equation for all the forces and components of force on the box in the horizontal direction. d. Calculate the size of the frictional force opposing the motion of the box.Compared to the force that the sun exerts on the earth, the force exerted by the earth on the sun is: a. Greater b. Less c. Equal d. Negligible
- Which law has this statement? “An object either remains at rest or continues to move at a constant velocity, unless acted upon by a net force”. a. First Law b. Second Law c. Third Law d. Law of GravitationA 300N wagon is pulled up a 30° incline at constant speed. a. How large a force parallel to the incline is needed if friction effects total of 10N? b. What will be the force exerted by the incline to support the wagon? c. What is the coefficient of friction?A force of 10 N is needed to set a 250 N box across the floor. What is the coefficient of friction between box and floor? a) 0.04 b) 0.08 c) 0.25 D) 2.50 6. In Newton's third law, the action and reaction forces a) act on the same body. b) act on different bodies. C) are inversely proportional. D) are perpendicular to each other. 7. How is it possible for a large force to produce a small or even zero torque? a) When the force produces clockwise rotation. b) When the force produces counter-clockwise rotation. c) When the lever arm is perpendicular to the line of action of the force. d.)When the force passes through the point of rotation.