
1. A 2 kg block starts from rest and travels 25 m down a slide from...
1. A 2 kg block starts from rest and travels 25 m down a slide from height 10 m as in the fig below. It leaves the slide with velocity 5 m/s at the bottom. What is the frictional force on the block? (20 points) Use Work-Energy method
1. A 2 kg block starts from rest and travels 25 m down a slide from height 10 m as in the fig below. It leaves the slide with velocity 5 m/s at the bottom. What is the frictional force on the block? (20 points) Use Work-Energy method
A 2 kg block starts from rest and travels 25 m down a slide from height 10 m as in the fig below. It leaves the slide with velocity 5 m/s at the bottom. What is the frictional force fk on the block?
A block of mass 0.9 kg starts from rest and slides down a curved frictionless slide. Determine the change in the block's height when its speed has reached 4.1 m/s.
As shown below (not to scale), a block of mass starts from rest
and slides down a frictionless ramp of height h. Upon reaching the
bottom of the ramp, it continues to slide across a flat
frictionless surface. It then crosses a "rough patch" on the
surface of length d=10m. This rough patch has a coefficient of
kinetic friction uK=.1. After crossing the rough patch, the block's
final speed is vf=2m/s. What is the height of the ramp? Hint: I...
A 20 kg child slides down a 3.0-m-high playground slide. She starts from rest, and her speed at the bottom is 1.7 m/s. What is the change in thermal energy of the slide and the seat of her pants? What is the change in thermal energy of the slide and the seat of her pants?
A student, starting from rest, slides down a water slide. On the way down, a kinetic frictional force (a nonconservative force) acts on her. The student has a mass of 81 kg, and the height of the water slide is 11.7 m. If the kinetic frictional force does -6.7 × 103 J of work, how fast is the student going at the bottom of the slide?
A student, starting from rest, slides down a water slide. On the way down, a kinetic frictional force (a nonconservative force) acts on her. The student has a mass of 81.0 kg, and the height of the water slide is 10.9 m. If the kinetic frictional force does -7.70 × 103 J of work, how fast is the student going at the bottom of the slide?
4. A student, starting from rest, slides down a water slide. On the way down, a kinetic frictional force "A non-conservative force" acts on her. The student has a mass of 76 kg, and the height of the water slide is 15.0 m. If the kinetic frictional force does - 6.2 x 10 J of work, How fast is the student going at the bottom of the slide?
A student, starting from rest,slides down a water slide. On the way
down, a kinetic frictionalforce (a nonconservative force) acts on
her. Thestudent has a mass of 69.0 kg, and the height of the water
slide is11.3 m. If the kinetic frictional force does -5.60
103 J of work, how fast is the student going atthe
bottom of the slide?