A 2.00 × 102 kg iceboat is propelled across the horizontal surface of a frozen lake...
A contestant in a winter games event pushes a 32.0-kg rock across a frozen lake with a force of 25 Nat 24" below the horizontal as shown in Figure (ə) below, and it moves with an acceleration of 0.71 ms to the right. (a) What is the normal force (in N) exerted by the lake surface on the rock? (b) Instead of pushing on the rock, the contestant now pulls on it with a rope over his shoulder at the...
A 2.00 102-kg crate is being pushed across a horizontal floor by a force P with arrow that makes an angle of 30.0° below the horizontal. The coefficient of kinetic friction is 0.200. What should be the magnitude of P with arrow, so that the net work done by it and the kinetic frictional force is zero?
A 2.0 kg block starts from rest. It is pushed across a rough
horizontal surface by a force F (magnitude of F = 8.0 N) directed
at a 40° angle as shown. The block is found to accelerate along the
surface at 2.0 m/s2.
Prove that there is a frictional force acting on the block
F-8.0 N 40° 40 2.0 kg
A 44.7 kg girl and a 59.2 kg boy are on the surface of a frozen lake, 11.5 m apart. Using a rope, the girl exerts a horizontal 6.00 N force on the boy, pulling him toward her. Calculate the magnitude of the girl’s acceleration.
A dock worker applies a constant horizontal force of 75.0 N to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves 13.0 m in the first 4.00 s. What is the mass of the block of ice? m= (value) Kg
Please answer the four questions below. I attached the previous post. A 200. kg iceboat is accelerating in the +x direction on a frictionless frozen lake. ->a) What is the iceboat's acceleration in m/s2? ->b) At t = 0, the ice boat has an initial velocity of 2.00 m/s. What was the iceboat's initial momentum? (in kg m/s) ->c) What was the iceboat's initial kinetic energy? (in Joules) ->d) What is the kinetic energy after going through the 20.0 m...
A 300N force is pulling an 80-kg refrigerator across a horizontal surface. The force acts at an angle of 30.0° above the surface. The coefficient of kinetic friction is 0.200, and the refrigerator moves a distance of 10.00 m. Find (a) the work done by the all the forces acting on the refrigerator and the net work done on it.
6. A 2.0 kg block slides to the right across a horizontal surface. Let's define a coordinate system where the +x-direction is to the right. At x=0, the block's velocity is +5.0 m / s (to the right). The magnitude of the kinetic friction force between the block and surface is 10N.a. Draw a force diagram of the block. Which forces expert zero work on the block? Explain why.c. What is the work that the kinetic friction force exerts on...
A 4.7 kg block is being pushed across a frictionless horizontal surface by a horizontal force. The block accelerates at 3.8 m/s2. What is the magnitude of the normal force the surface exerts on the block? Express your answer in newtons and round to one decimal place.
A 3.9 kg block is being pushed across a frictionless horizontal surface by a horizontal force. The block accelerates at 5.6 m/s2. What is the magnitude of the normal force the surface exerts on the block? Express your answer in newtons and round to one decimal place.