I need all parts for 7

U4 - W52 - More Force and Acceleration AP Physics 1 Unit 4 - Fans and Acceleration For \"d. problem. (Ir-w Ill nppmprhte clutch, Ill Ipproprlnte [one diagrams Ind show your work. i a l. A box with mass m is pulled by a force Fat an angle 0 above the horizontal. The force of kinetic friction is}? w the acceleration of the box? " A mass m is allowed to accelerate down a frictionless ramp inclined at an angle 0. . a. What is the acceleration of the block down the ramp? b. How long will it take for the block to slide a distance d? 3. A block (mass mA) rests on a 'ictionless table; a cord attached to the block extends horizontally to a pulley at the edge of the table. Another block (mass m) hangs at the end of the cord. 3. Clearly draw and label the forces acting on each object. b. Derive an expression for the acceleration of each block. c. What would have to be true of the blocks for the acceleration of block A to be 'A g? d. Derive an expression for the tension in the cord. . 4. Two lovers are parked 10.0 m from the edge of a cliff in a car whose mass, including that of the occupants '5 1000 kg. --- A Jealous suitor ties a rope to the car's bumper and a 50 kg rock to the other end of the rope. He then lowers 1h: rock over the edge of the cliff, and the car, which is in neutral (negligible friction), accelerates toward the edge. a. Draw force diagrams; label the forces acting on the rock and car. b. What is the acceleration of the car towards the edge? c. How long do the lovers have before they go over the edge? - g? 5. To the right is a picture of an Atwood's Machine: two masses attached to a massless pulley with negligible friction. The mass of block A is 5.0 kg, and the mass of B is 2.0 kg. a. What is the acceleration of the system when the blocks are released? a b. How long will it take for block A to fall 2.0 m? 0. Another block with mass 6.0 kg (block C) is attached by a rope to block B. Find the new acceleration of the system. d. What would you have to add to this new system for each of the blocks to move at constant velocity? 6. An applied 25 N force pushes on a block resting on a frictionless horizontal surface. The force is directed downwards at an angle of 20'. The block has a mass of 20 kg. 21. What is the component of the applied force perpendicular to the surface? F ' ' b. What is the component of the applied force parallel to the surface? 0. What is the normal force? (1 What is the acceleration of the block? 6. How long will it take the block to move 15 meters if it starts from rest? 7. A 0.500 kg cart is on a ramp inclined at 20'. The can is tied to a15 g mass that hangs over a massless, frictionless pulley at the end of the maa W- ramp. Friction between the cart and the ramp keeps the system at rest. \"\"60 n ass a What is the force offriction between the cart and the ramp? 9 b. If 10 g are removed from the hanging mass, what will the resulting acceleration of the system be? Assume friction force is constant c. If the original masses are used, but the angle is changed to 30' and the surface is frictionless, what is acceleration of the blocks? 8. You (a generic person with a mass of 70 kg) are in a building with an elevator that accelerates with a magnitude of 3 m/s2 for 2 seconds in order to start and stop at any particular oor. You enter the elevator on the 10th oor carrying a ll. bathroom scale (calibrated in newtons) andstand on the scale as the doors close and the elevator begins to descend to E the rst oor 30 meters below. a How long does the trip take? . b. What are the maximum and minimum readings on the scale and where are you when they occur? 9. A block of mass m is being pulled up a frictionless ramp inclined at an angle a by a force F. a. What is the acceleration of the block? b. Repeat part 3, except now, assume that there is a frictional force f acting on the block. 10. A man pushes a 2.0 kg broom at constant speed across the oor. The broom handle makes a 50 angle with the oor. He pushes the broom with a 5.0 N force. a. What is the magnitude of the normal force? b. What is the magnitude of the frictional force opposing the motion