In Example 5.7, we pushed on two blocks on a table. Suppose three blocks are in contact with one another on a frictionless, horizontal surface as shown in Figure P5.43. A horizontal force
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Chapter 5 Solutions
Physics for Scientists and Engineers
- An object of mass m = 1.00 kg is observed to have an acceleration a with a magnitude of 10.0 m/s2 in a direction 60.0 east of north. Figure P4.29 shows a view of the object from above. The force F2 acting on the object has a magnitude of 5.00 N and is directed north. Determine the magnitude and direction of the one other horizontal force F1 acting on the object. Figure P4.29arrow_forward(a) Find an equation to determine the magnitude of the net force required to stop a car of mass m, given that the initial speed of the car is v0 and the stopping distance is x . (b) Find the magnitude of the net force if the mass of the car is 1050 kg, the initial speed is 40.0 km/h, and the stopping distance is 25.0 m.arrow_forwardGive reasons for the answers to each of the following questions: (a) Clan a normal force be horizontal? (b) Can a normal force be directed vertically downward? (c) Consider a tennis ball in contact with a stationary floor and with nothing else. Can the normal force be different in magnitude from the gravitational force exerted on the ball? (d) Can the force exerted by the floor on the hall be different in magnitude from the force the ball exerts on the floor?arrow_forward
- Please answer this, I need help.arrow_forwardA toy rocket engine is securely fastened to a large puck that can glide with negligible friction over a horizontal surface, taken as the xy plane. The 9.00-kg puck has a velocity of 2.00 î m/s at one instant. Eight seconds later, its velocity is (6 î + 16 ĵ) m/s. a) Assuming the rocket engine exerts a constant horizontal force, find the components of the force. b) Find its magnitude.arrow_forwardPlease help me to answer this 2 questions. Thank you!arrow_forward
- A disk between vertebrae in the spine is subjected to a shearing force of 625 N. Find its shear deformation, taking it to have a shear modulus of 1.30 x 10° N/m². The disk is equivalent to a solid cylinder 0.550 cm high and 2.50 cm in diameter. Question Credit: OpenStax College Physics shear deformation: marrow_forwardThe 102-kg crate is constantly subjected to the action of the two forces as shown. After the crate slides for a distance of 10 m, it attains a speed of 16438.271 mm/s. Determine the magnitude of the force (N) F if the coefficient of kinetic friction is 0.21. F 813 N 30°arrow_forwardA 7 kg block is resting on a horizontal tabletop. A 3 kg block is on top of the 7 kg block. An applied force of 12 N is exerted straight downward on the top block. Draw the free-body diagrams on each block and find (a) the magnitude of the normal force on the 3 kg block from the 7 kg block, and (b) the magnitude of the normal force on the 7 kg block from the table.arrow_forward
- Please solve this question with explanation.. What is the problem why u are rejecting my question.arrow_forwardA 1.9 kg otter starts from rest at the top of a muddy incline 84.1 cm long and slides down to the bottom in 0.60 s. What net external force acts on the otter along the incline? Answer in units of N.arrow_forwardn6 no 2129 1. Consider the der the two-body situation at the righ right. A 25kg crate vera al bas encla beribni rests on an inclined plane and is connected by a cable to a 40kg mass (m2). This second mass (m2) is suspended over a pulley. The incline angle is 30.0° and the surface is frictionless. Draw free- body diagram for mass m, and m₂. Determine the acceleration of the system and the tension in the cable. 996hua 9rt bns 0.08 al signs 9niboni OSI.0 noitaht to insi903 6 26rl ort to noi16191930i1990 sidso srit ni stort has metaya m1 m2arrow_forward
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