2. (25 pts.) A block of mass m= 5.00 kg is pulled along rough horizontal surface by a rope as shown in the figure below. The tension in the rope is 60.0 N and the force of friction between the block and the surface is 3 N. If the block travels a distance of 7.00 m along the surface in 30.0 s, find: (a) the work done by the tension in the rope. (b) the work done by the force of gravity (c) the work done by the normal force (d) the work done by the frictional force. (e) the total work done by all the forces on the block. (f) find the average power delivered to the block by the 60.0 N force during the 30.0 s interval. 60N 20 3N mg
2. (25 pts.) A block of mass m= 5.00 kg is pulled along rough horizontal surface by a rope as shown in the figure below. The tension in the rope is 60.0 N and the force of friction between the block and the surface is 3 N. If the block travels a distance of 7.00 m along the surface in 30.0 s, find: (a) the work done by the tension in the rope. (b) the work done by the force of gravity (c) the work done by the normal force (d) the work done by the frictional force. (e) the total work done by all the forces on the block. (f) find the average power delivered to the block by the 60.0 N force during the 30.0 s interval. 60N 20 3N mg
2. (25 pts.) A block of mass m= 5.00 kg is pulled along rough horizontal surface by a rope as shown in the figure below. The tension in the rope is 60.0 N and the force of friction between the block and the surface is 3 N. If the block travels a distance of 7.00 m along the surface in 30.0 s, find: (a) the work done by the tension in the rope. (b) the work done by the force of gravity (c) the work done by the normal force (d) the work done by the frictional force. (e) the total work done by all the forces on the block. (f) find the average power delivered to the block by the 60.0 N force during the 30.0 s interval. 60N 20 3N mg
A block of mass m= 5.00 kg is pulled along rough horizontal surface by a rope as shown in the figure below. The tension in the rope is 60.0 N and the force of friction between the block and the surface is 3 N. If the block travels a distance of 7.00 m along the surface in 30.0 s, find: (a) the work done by the tension in the rope. (b) the work done by the force of gravity (c) the work done by the normal force (d) the work done by the frictional force. (e) the total work done by all the forces on the block. (f) find the average power delivered to the block by the 60.0 N force during the 30.0 s interval.
Transcribed Image Text:2. (25 pts.) A block of mass m= 5.00 kg is pulled along rough horizontal surface by a rope as shown
in the figure below. The tension in the rope is 60.0 N and the force of friction between the block
and the surface is 3 N. If the block travels a distance of 7.00 m along the surface in 30.0 s, find:
(a) the work done by the tension in the rope.
(b) the work done by the force of gravity
(c) the work done by the normal force
(d) the work done by the frictional force.
(e) the total work done by all the forces on the block.
(f) find the average power delivered to the block by the 60.0 N force during the 30.0 s interval.
60N
20
3N
mg
Definition Definition Force that opposes motion when the surface of one item rubs against the surface of another. The unit of force of friction is same as the unit of force.
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