Part A A block of mass m = 185 g is attached to a wall by a spring (k = 22 N/m) and is at rest on a horizontal floor, the coefficient of friction is 0.20. The spring is not deformed Another identical block moves to the wall with a speed of 3.0 m/s when it sticks to the first block. What is the maximum distance of the spring's compression? Express your answer with the appropriate units. Imax= HÅ Value 4 Submit Request Answer Units ? Next
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- To test the impact performance of a 10 cm thick gymnastics mat, a 20 kg cylindrical mass isdropped onto the mat from a height of 1 m above the mat. During the impact, the cylinder’s vertical velocity reaches zero at the instant the mat has compressed to only 4 cm thick. a. How much kinetic energy does the cylinder have at the instant just before it contacts the mat? b. What average vertical force does the mat exert on the cylinder during the impact, from contact until the cylinder’s vertical velocity is zero?Conservation and energy Q3: please answer parts a, c, and d. Please explain reasoning for all steps even if minor. Part b is answered as shown.Suppose that during each step, the leg of the student, which is 0.90 meters long, swings through a total distance of 2.0 m. At the end of the swing, this foot rests on the ground for 0.2 s before the other leg begins its swing. a. At what speed does this student walk? (Think carefully about how far forward the student moves at each step.) b. The swinging leg reaches its maximum speed at the bottom of its arc. How many times faster is this maximum leg speed (measured with respect to the ground) than the average walking speed?
- A 50 g ice cube can slide up and down a trictionless 30 slope. At the bottom, a spring with spring constant 55 N/m is compressed 10 cm and used to launch the ice cube up the slope. Part A How high does it go above its starting point? Express your answer with the appropriate units. View Available Hint(s) h = Value Units ?Part A A 55 g rock is placed in a slingshot and the rubber band is stretched. The magnitude of the force of the rubber band on the rock is shown by the graph in (Figure 1). The rubber band is stretched 30 cm and then released. What is the speed of the rock? Express your answer with the appropriate units. HÁ Vf = Value Figure < 1 of 1 Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining FSp (N) 60- Return to Assignment Provide Feedback 40- 20 x (cm) 30 10 20To test the impact performance of a 10 cm thick gymnastics mat, a 20 kg cylindrical mass is dropped onto the mat from a height of 1 m above the mat. During the impact, the cylinder’s vertical velocity reaches zero at the instant the mat has compressed to only 4 cm thick. a. How much kinetic energy does the cylinder have at the instant just before it contacts the mat? b. What average vertical force does the mat exert on the cylinder during the impact, from contact until the cylinder’s vertical velocity is zero?
- Part A A0.60 kg book slides on a horizontal table, The kinetic friction force on the book has magnitude 1.1 N. How much work is done on the book by friction during a displacement of 3.4 m to the left? Express your answer with the appropriate units. HẢ W = Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Part B The book now slides 3.4 m to the right, returning to its starting point. During this second 3.4 m displacement, how much work is done on the book by friction? Expre your nswer with the appropria eunits. Ii HẢ W2 = Value Units Submit Request Answer Part CPlease solve for the followingLearning Goal: Recall that the work W done by a constant force Fat an angle to the displacement Ar is W = F· A7 = FAr cos 0. The vector magnitudes F and Ar are always positive, so the sign of Wis determined entirely by the angle between the force and the displacement. Figure AP 1 of 1
- The spring in (Figure 1) is compressed by 10 cm. It launches a block across frictionless surface at 0.50 m/s. The two springs in (Figure 2 ) are identical to the spring of (Figure 1). They are compressed by the same 10 cm and launch the same block. Figure 10 cm 25 N/m www.1.0kg Xeq 1 of 2 Part A What is the block's speed now? Express your answer with the appropriate units. ► View Available Hint(s) V2 = Submit μA Value Provide Feedback B Units ?Let the gravitational potential energy of the earth-satellite system be zero in the limit that the orbit radius is very Gm m large, so the total mechanical energy of the satellite-earth system is given by B = Part A If the kinetic energy of the satellite is 2.00 x 10° J, what is the total energy of the satellite--earth system? Express your answer with the appropriate units. Template Undo redo Teset keyboard shortcuts Help Units Request Answer Part B If the kinetic energy of the satellite is 2.00 x 10° J, what is the gravitational potential energy of the satellite-earth system? Express your answer with the appropriate units. Tamplator Templates Symbols Undo rapo Peser keyboard shortcuts Help E= Submit U= Submit Value Value Request Answer Units