if you pull a box an angle does the acceleration change
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A box of mass 2.3 kg is on a horizontal frictionless surface. You are able to apply a push of 18.0 N acting at an angle 25.0° below the horizontal. The box initially is at rest. (a) Find the acceleration of the box. (b) What is the speed of the box after it has travelled a distance of 2.9 m? (c) If you instead pulled upwards on the box with the same force at the same angle above the horizontal, would your answers change? No Yes
Timothy J.
(5) Two boxes start from rest and slide down a frictionless ramp that makes an angle of 30° to the horizontal. Block A starts at height h, while Block B starts at a height of 2h. Suppose the two boxes have the same mass. At the bottom of the ramp, a) Box A is moving twice as fast as box B. b) Box B is moving twice as fast as box A. c) Box A is moving faster than box B, but not twice as fast. d) Box B is moving faster than box A, but not twice as fast. e) Box A has the same speed as box B. Suppose box B has a larger mass than box A. At the bottom of the ramp, a) Box A is moving twice as fast as box B. b) Box B is moving twice as fast as box A. c) Box A is moving faster than box B, but not twice as fast. d) Box B is moving faster than box A, but not twice as fast. e) Box A has the same speed as box B.
Animesh R.
You pull a box of inertia m across a floor with negligible friction using a lightweight string that makes an angle θ with the horizontal. You pull on the string with a force of magnitude |F|. The box remains in contact with the floor and accelerates to the right as shown: In the space below, draw a free-body diagram for the box. Label the forces acting on the box. Find |a|, the magnitude of the box's acceleration, in terms of |F|, m, θ, and any necessary constants. Find the magnitude of the normal force exerted by the floor on the box in terms of |F|, m, θ, and any necessary constants.
Hubert A.
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