A massless vertical rope is used to lower a block of mass 18 kg at constant acceleration 1.1 m/s2 downward. Find the work done by the tension in the rope, in J, after the block is lowered a distance of 54.5 m.
A massless vertical rope is used to lower a block of mass 18 kg at constant...
QUESTION 1 A 105 g spring-driven toy car is on circular track (radius 9.01 m) moving 30.7 m/s when the spring runs down. If, after 8.37 s, friction has slowed the car down to 4.03 m/s: findF, the magnitude of the net force acting on the car at that moment, in N. QUESTION 2 A massless vertical rope is used to lower a block of mass 99.7 kg at constant acceleration5.09 m/s2 downward. Find the work done by the tension in...
A cord is used to vertically lower an initially stationary block of mass M = 10 kg at a constant downward acceleration of g/6. When the block has fallen a distance d = 5.5 m, find the work done by the cord's force on the block.
A cord is used to vertically lower an initially stationary block of mass M = 7.6 kg at a constant downward acceleration of g/5. When the block has fallen a distance d = 4.2 m, find (a) the work done by the cord's force on the block, (b) the work done by the gravitational force on the block, (c) the kinetic energy of the block, and (d) the speed of the block. (Note : Take the downward direction positive).
A crate of mass m1 = 12.4 kg is pulled by a
massless rope up a 36.9° ramp. The rope passes over an ideal pulley
and is attached to a hanging crate of mass m2 =
16.3 kg. The crates move 1.70 m, starting from rest. If the
frictional force on the sliding crate has magnitude 21.7 N and the
tension in the rope is 121.5 N, find the total work done on the
sliding crate.
The total work done...
A light rope is attached to a block with mass 3.40 kg that rests on a frictionless, horizontal surface. The horizontal rope passes over a frictionless, massless pulley, and a block with mass m is suspended from the other end. When the blocks are released, the tension in the rope is 19.1 N . c. What is the acceleration of either block? Express your answer with the appropriate units. d. Find m. Express your answer with the appropriate units. e....
A 2.45-kg object hangs in equilibrium at the end of a rope
(taken as massless) while a wind pushes the object with a 13.1-N
horizontal force. Find the magnitude of the tension in the rope,
and the rope\'s angle from the vertical. The acceleration due to
gravity is 9.81 m/s2.
A) What is the Tension?
B) Angle?
A 2.74 kg block is pushed 1.41 m up a vertical wall with a
constant speed by a constant force of magnitude F applied at an
angle of 66.3 with the horizontal. The acceleration of gravity is
9.8 m/s2. If the coefficient of kinetic friction between the block
and wall 0.415, find the work done by F.
A 2.74 kg block is pushed 1.41 m up a vertical wall with a constant speed by a constant force of magnitude F...
A 3.05-kg object hangs in equilibrium at the end of a rope (taken as massless) while a wind pushes the object with a 14.1-N horizontal force. Find the magnitude of the tension in the rope, and the rope's angle from the vertical. The acceleration due to gravity is 9.81 m/s2 Tension: Number wind Angle: Number
A crate of mass m1 = 12.4 kg is pulled by a massless rope up a 36.9° ramp. The rope passes over an ideal pulley and is attached to a hanging crate of mass m2 = 16.3 kg. The crates move 1.40 m, starting from rest. If the frictional force on the sliding crate has magnitude 22.6 N and the tension in the rope is 121.5 N, find the total work done on the sliding crate.
A light rope is attached to a block with mass 3.00 kg that rests on a frictionless, horizontal surface. The horizontal rope passes over a frictionless, massless pulley, and a block with mass m is suspended from the other end. When the blocks are released, the tension in the rope is 15.3 N . part a) Draw free-body diagram for the 3.00-kg block. Assume block is moving to the right. Draw the vectors starting at a black dot. The location...