Force AP Physics Multiple Choice Name In the situation below, what ：力物理多选择的名字在下面的情况，什么.docx

Force AP Physics Multiple Choice Name ____________________ In the situation below, what is the tension in string 1? 69.3 N b. 98 N c. 138.6 N d. 147.6 N e. 1.55 N 45?125 kg Two masses, M and m, are hung over a massless, frictionless pulley as shown below. If M m, what is the downward acceleration of mass M?g b. c. d. e. Mmg A 0.25 kg mass is attached to a string and swung in a vertical circle whose radius is 0.75 m. At the bottom of the circle, the mass is observed to have a speed of 10 m/s. What is the magnitude of the tension in the string at that point?2.45 N b. 5.78 N c. 22.6 N d. 35.7 N e. 44.7 N A car and driver have a combined mass of 1000 kg. The car passes over the top of a hill that has a radius of curvature equal to 10 m. The speed of the car at that instant is 5 m/s. What is the force of the hill on the car as it passes over the top?7300 N up b. 7300 N down c. 12,300 N up d. 12,300 N downe. 0 N A hockey puck with a mass of 0.3 kg is sliding along ice that can be considered frictionless. The puck’s velocity is 20 m/s. The puck now crosses over onto a floor that has a coefficient of kinetic friction equal to 0.35. How far will the puck travel across the floor before it stops?3 m b. 87 m c. 48 m d. 92 m e. 58 m A spring with a stiffness constant k = 50 N/m has a natural length of 0.45 m. It is attached to the top of an incline that makes a 30? angle with the horizontal. The incline is 2.4 m long. A mass of 2 kg is attached to the spring, causing it to be stretched down the incline. How far down the incline does the end of the spring rest?0.196 m b. 0.45 m c. 0.646 m d. 0.835 m e. 1.2 mA 20 N force is pushing two blocks horizontally along a frictionless floor. What is the force that the 8 kg mass exerts on the 2 kg ma