A skier of mass 70kg is pulled up a frictionless
incline of 30 degrees for 60m along the incline attaining a speed
of 2m/s. How much energy is required to perform that action by the
motor?
B) calculate power
A skier of mass 70kg is pulled up a frictionless incline of 30 degrees for 60m...
A skier of mass 67 kg is pulled up a slope by a motor-driven cable. a) How much work is required to pull him 65 m up a 30° slope (assumed frictionless) at a constant speed of 3.5 m/s? _________kJ (b) What power (expressed in hp) must a motor have to perform this task? _______hp
A skier is pulled by a towrope up a frictionless ski slope that makes an angle of 12 degrees with the horizontal. The rope moves parallel to the slope with a constant speed of .0m/s. The force of the rope does 900J of work on the skier as the skier moves a distance of 8.0m up the incline. (a) If the rope moed with a constant speed of 2.0m/s, how much work would the force of the rope do on...
A skier of mass 72 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 85 m up a 30 degree slope (assumed frictionless) at a constant speed of 2.2 m/s? Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. (b) What power (expressed in hp) must a motor have to perform this task? Your response differs significantly from the correct...
A skier is pulled by a tow rope up a frictionless ski slope that makes an angle of 8.9° with the horizontal. The rope moves parallel to the slope with a constant speed of 1.1 m/s. The force of the rope does 640 J of work on the skier as the skier moves a distance of 5.9 m up the incline. (a) If the rope moved with a constant speed of 2.4 m/s, how much work would the force of...
An object with a mass of 60.0 kg is pulled up an inclined surface by an attached rope, which is driven by a motor. The object moves a distance of 40.0 m along the surface at a constant speed of 3.5 m/s. The surface is inclined at an angle of 30.0° with the horizontal. Assume friction is negligible. (a) How much work (in kJ) is required to pull the object up the incline? kJ (b) What power (expressed in hp)...
70kg is sliding up on a hill side at an A mass m incline angle 0 = 30°. The initial velocity of the mass is vi 30m/s, and no external force is applied to the mass on the incline. The height of the structure ish = 25 m Note that the static friction coefficient of snow is i, = 0.5, and kinetic friction coefficient of snow is 0.4. Use the principles of energy and work to find the answen to...
3. A crate of mass 10 kg is pulled up a rough incline which makes an angle of 20° with the horizontal with the speed 1.5 m/s. The coefficient of kinetic friction is 0.4. Find the distance along the incline that the crate covers before stop. How much energy is lost due to friction?
A skier slides down a slope at an incline of 30 degrees. It takes 12 s for the skier to reach the bottomr of the slope. Assume motion is frictionless descent. How long is the slope? What is the skier’s velocity when he reaches the bottom of the slope?
A crate of mass 10.8 kg is pulled up a rough incline with an initial speed of 1.48 m/s. The pulling force is 98 N parallel to the incline, which makes an angle of 19.4° with the horizontal. The coefficient of kinetic friction is 0.400, and the crate is pulled 5.08 m. (a) How much work is done by the gravitational force on the crate? J (b) Determine the increase in internal energy of the crate–incline system owing to friction....
A crate of mass 11.0 kg is pulled up a rough incline with an initial speed of 1.40 m/s. The pulling force is 90.0 N parallel to the incline, which makes an angle of 19.6° with the horizontal. The coefficient of kinetic friction is 0.400, and the crate is pulled 4.90 m. (a) How much work is done by the gravitational force on the crate? (b) Determine the increase in internal energy of the crate-incline system due to friction. (c)...