A ball (i.e., a hollow sphere), sliding on a horizontal frictionless surface at 20 m/s, encounters...
A ball(i.e., hollow sphere), sliding on a horizontal frictionless surface at 20 m/s, encounters a rough surface and begins to roll. Assuming that energy is conserved what is the speed of the ball after it begins to roll?
A ball (i.e., a hollow sphere), sliding on a horizontal friction less surface at 20 m/s, encounters a rough surface and begins to roll. Assuming that energy is conserved what is the speed of the ball after it begins to roll?
A 2.80-kg box is sliding along a frictionless horizontal surface with a speed of 1.8 m/s when it encounters a spring. a. Determine the force constant of the spring, if the box compresses the spring 5.50 cm before coming to rest. b. Determine the initial speed the box would need in order to compress the spring by 1.30 cm. A box slides from rest down a frictionless ramp inclined at 39.0° with respect to the horizontal and is stopped at the bottom of...
As shown in the figure below, a box of mass m = 6.80 kg is sliding across a horizontal frictionless surface with an initial speed v1= 2.90 m/s when it encounters a spring of constant k = 2700 N/m. The box comes momentarily to rest after compressing the spring some amount xc. Determine the final compression xc of the spring.
3. A 2.0kg object with an initial speed of 12m/s moves on a horizontal frictionless surface until it encounters a 8.0m rough patch with u = 0.48. It moves through the rough patch to the other side. a) What is the initial kinetic energy c) What is the speed after the rough patch? b) what is the change in thermal energy due to the rough patch? d) Suppose it encounters a 2nd rough patch with the same friction constant. How...
A box of unknown mass is sliding with an initial speed Vi= 5.70 m/s across a horizontal frictionless warehouse floor when it encounters a rough section of flooring d= 2.30 m long. The coefficient of kinetic friction between the rough section of flooring and the box is 0.100. Using energy considerations, determine the final speed of the box (in m/s) after sliding across the rough section of flooring.
A box of unknown mass is sliding with an initial speed vi = 5.00 m/s across a horizontal frictionless warehouse floor when it encounters a rough section of flooring d = 2.60 m long. The coefficient of kinetic friction between the rough section of flooring and the box is 0.100. Using energy considerations, determine the final speed of the box (in m/s) after sliding across the rough section of flooring.
A box of unknown mass is sliding with an initial speed vi = 5.80 m/s across a horizontal frictionless warehouse floor when it encounters a rough section of flooring d = 2.30 m long. The coefficient of kinetic friction between the rough section of flooring and the box is 0.100. Using energy considerations, determine the final speed of the box (in m/s) after sliding across the rough section of flooring.
A hollow ball with mass m = 0.1 kg and radius R = 5 cm is sliding across a flat frictionless surface with an initial speed v = 5 m/s. At x = 0, it encounters a patch of ground with coefficient of kinetic friction μk = 0.3. The ball is initially not rotating but the friction causes it to start spinning. How far will it travel along that surface before it begins rolling without slipping. For this problem, assume...
On an essentially frictionless, horizontal ice rink, a skater moving at 6.0 m/s encounters a rough patch that reduces her speed by 46 % due to a friction force that is 26 % of her weight. Use the work-energy theorem to find the length of this rough patch.