block of mass m=50 kg is held in place on a fixed plane that is inclined by an angle 70° with respect to the horizontal. The coefficient of kinetic friction between the block and plane is 0.1. What is its acceleration? 9.87 m/s? O 11.87 m/s2 O 10.87 m/s2 O 8.87 m/s? O

Suppose you are at a bowling alley, where a machine uses a constant force and pushes balls up a ramp one meter in length. The balls are sliding -- not rolling -- along the incline, and they end up half a meter above the base of the ramp. Ignore friction. Approximately how much force does the machine put on a 5 kg bowling ball? 1.0 m H 0.5 m 200 N 50 N 25 N O 5N Impossible to determine

A 3 kg particle moves along an x axis, being propelled by a variable force directed along that axis. Its position is given by x = 2 m + (2 m/s)t + ct2 - (3 m/s³)t³ with x in meters and t in seconds.The factor c is a constant. At t = 4 s the force on the particle has a magnitude of 33N and is in the negative direction of the axis. What is c? Number Units

A man is trying to move an object (m 14.0 kg) by pulling upward on the rope at an angle of 53° above the horizontal. The coefficient of kinetic friction is 0.300 between the object and the ground. The tension in the rope is 150 N. What is the acceleration of the object? 53 O 6.08 m/s2 O 6.86 m/s2 O 3.50 m/s2 7.77 m/s2 6.82 m/s2

In the figure shown, the coefficient of kinetic friction between the block and the incline is 0.40. What is the magnitude of the acceleration of the suspended block as it falls? Disregard any pulley mass or friction in the pulley. p q# 10 p. 242 chap 7 2M ANWALLAFR O 3.4 m/s² O 5.4 m/s² O 3.9 m/s² O 4.2 m/s² O 3.7 m/s² M

You are pulling your luggage in an air port for an international flight. You know not to pack too much else they charge you extra fees so you weighted your luggage at home to be 22.0 kg. You exert a pull of 46 N in magnitude and at 24 degrees above the horizontal to ensure you can walk at a constant speed on the carpeted floor. What is the coefficient of friction between the caster wheels and the carpet?

A 1.0-kg block slides on a rough horizontal surface. A force, P = 9.0 N, is applied to the block at an angle to the horizontal as shown. The magnitude of the block's acceleration along the surface is 3.5 m/s?. What is the magnitude of the force of friction acting on the block? 30° 1.2 N 4.3 N 6.5 N O 15 N 7.2 N 9.0 N

6. A mass m1 = 4.90 kg block on a tabletop is attached by a string to a hanging block of mass m2 the figure. The coefficient of kinetic friction between the mass (m;) and the surface is 0.20. The blocks are released from rest and allowed to move freely. Find the magnitude of the tension in the string. 50 ssf60 ssf60 s 60 ssf60 ssfó0 ssf60 ssf60 ssf60 s 00 ssf60 2.30 kg, as shown in 60 sf60 ssf602 60 ssf60 ssf60sf60 60 ss sT60 ssf60 ssf60 ssf60 s ssf60 ssf60 ssf60 ssf60 ssf60 s 60 ssf60 ssf60

In a movie, a stuntman places himself on the vertical front of a truck as the truck accelerates. The coefficient of static friction between the stuntman and the truck is 0.370. The stuntman is not standing on anything but can “stick” to the front of the truck as long as the truck continues to accelerate. What minimum forward acceleration will keep the stuntman on the front of the truck?

A wooden box of mass 30 kg slides on a concrete floor. What is the coefficient of friction if the frictional force acting between the box and the surface is 180 N? 0.061 0.312 0.031 O 0.612