In the figure, a 1.62 kg ball is connected by means of two massless strings, each of length L = 1.97 m, to a vertical, rotating rod. The strings are tied to the rod with separation d = 1.97 m and are taut. The tension in the upper string is 42.0 N. What are (a) the tension in the lower string, (b) the magnitude of the net force net on the ball, and (c) the speed of the ball? L Rotating rod

Consider a conical pendulum with a bob of mass m = 58.0 kg on a string of length L = 10.0 m that makes an angle of 8 = 2.00° with the vertical. (Consider +î to be towards the center of the circular path and +j to be upward.) (a) Determine the horizontal and vertical components of the force exerted by the string on the pendulum. NI+ Nj (b) Determine the radial acceleration of the bob. m/s²

A 4 kg block is sliding down a vertical wall while being pushed by an external force as shown in the figure. What magnitude of the external force (in N) would be required for the block to move down the wall at constant speed if the coefficient of kinetic friction between the wall and the block is u = 0.20? 4 kg 六F 300 36.98

A 2.00 kg aluminum block and a 6.00 kg copper block are connected by a light string over a frictionless pulley. The two blocks are allowed to move on a fixed steel block wedge (of angle θ=30.0∘θ=30.0∘) with the aluminum block on the flat of the wedge and the copper block on the angled part. Determine (a) the acceleration of the two blocks and (b) the tension in the string.

A 4.15 kg4.15 kg box is suspended from a system of massless wires attached to a ceiling. The first wire makes an angle of ?1=63.0∘θ1=63.0∘ with the ceiling, whereas the second wire makes an angle of ?2=41.5∘θ2=41.5∘ with the ceiling.   Determine the magnitudes of the tensions in the first and second wires, ?1T1 and ?2,T2, respectively.

A bulldozer drags a 252 kg long along the rough horizontal ground. The cable attached to the log applies a 525 N force at an angle of 30.0 degrees above the ground. The coefficient of kinetic friction between the log and the ground is 0.150. Assume the direction of motion is +x and upwards is +y.  What is the normal force acting on the log?   What kinetic friction force is acting on the log? (With proper sign)  What is the acceleration of the log?

The crate A weighs 780 lb. Between all contacting surfaces, μs = 0.34 and μk = 0.29. Neglect the weights of the wedges. What force F is required to move A to the right at a constant rate? Wedge angle is 6 degrees.

Mass m, = 13.7 kg is on a horizontal surface. Mass m, = 7.49 kg hangs freely on a rope which is attached to the first mass. The coefficient of static friction between m, and the horizontal surface is µs = 0.618, while the coefficient of kinetic friction is µk = 0.121. m1 m2 If the system is in motion with m, moving to the left, then what will be the magnitude of the system's acceleration? Consider the pulley to be massless and frictionless. Submit Answer Incorrect. Tries 2/10 Previous Tries

A car of mass m₁ 1000 kg is connected to a trailer of mass m2 = 400 kg by a taut inextensible cable. The car's engine provides a constant forward driving force Fx = 7000 N, which causes the car-plus-trailer to accelerate forwards along the horizontal x-axis. The tension of the cable produces a force on the trailer and also a force on the car. You may assume that the magnitude of the two forces is the same. You may also ignore friction. What is the tension in the cable joining the car to the trailer? Give your answer by entering a number, correct to an appropriate number of significant figures, in the empty box below.