Pat is on a swing equipped with a force scale as shown in the figure. Pat\'s wei
ID: 1388895 • Letter: P
Question
Pat is on a swing equipped with a force scale as shown in the figure. Pat's weight is 250 N and the swing's weight is 150 N. Pat pulls on the rope so that he rises with constant velocity. What does the scale read? Ahand pushes two blocks, ml and m2, with constant force F across a horizontal, frictionless plane. The blocks move as one. When is the net force on the leading block, m2, equal to the force F exerted by the hand? Only when block m2 is less massive than ml (m2 ml). O Only when the blocks are moving at constant velocity. Always. Three blocks of masses ml, m2 and m3 are connected with very light (massless) rods. The masses are on a horizontal, frictionless surface. A hand pushes on the middle mass, m2, with constant force F as shown in the figure. Find the statement that is FALSE. The net force on m3 does not depend on ml. The net force on m1 has the same magnitude as the force that m1 exerts on m2. The net force on m3 has the same magnitude as the force that m3 exerts on m2. The net force on m2 is F. The acceleration of each mass is directly proportional to force F. A car is going around in a circle at constant speed. What can be said about the car's acceleration and the net force acting on the car? The net force is zero but the acceleration is not zero. The acceleration is zero but the net force is not zero. Both the net force and the acceleration are zero. Both the net force and the acceleration are not zero. A woman pushes horizontally on a wooden box of mass 34.4 kg sitting on a frictionless ramp inclined at an angle of teta = 38.0 degree. Assume that the box is moving at constant velocity up the ramp. Calculate the magnitude of the force (in Newtons) exerted by the woman on the box.Explanation / Answer
Q1 ans d) 200N
Q2 ans b) Never
Q3 ans d) The net force on m2 is F
Q4 ans d) Both thenet force and acceleration are not zero
Q5 ans F = m.g.slope = 253.01N