10. A pendulum has a bob with a mass of 0.077 kg. The bob reaches a maximum speed of 0.60 m/s. Calculate the maximum height that it will rise to.
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- 7. Two masses, m1 = 2 kg and m2 = 8 kg, are pressed onto identical springs (k = 2 × 104 N/m) so that the springs are each compressed by 10 cm. The masses are then released; they slide towards each other on a frictionless table and undergo an elastic collision. Find the speed of each mass before the collision. Find the speed of each mass after the collision. After the collision, m1 will rebound to the left and hit the spring again. How far will the spring compress before it momentarily comes to rest? m2 m,A car with mass 1530 kg crashes into a wall. The car’s velocity immediately before the collision was 12.6 m/s and the bumper is compressed like a spring with spring constant 1.14 × 107 N/m. What is the maximum deformation of the bumper for this collision?Answer in units of m.A mass of 0.50 kg is held against compressed spring and released from rest while upon a horizontal, frictionless surface. The spring constant of the spring is 790 N/m and the mass leaves the spring with a speed of 7.84 m/s. Assume that the spring pushes the mass across the surface. By what amount was the spring initially compressed relative to its equilibrium position? 0.197
- A spring of spring constantk 625 N/m rests on a horizontal frictionless surface. A 0.25 kg object compressed the spring by 0.3 m. If the mass is released from rest, what is the speed of the mass as it passes through the equilibrium point (in m/s)? 10 wwww.m а. b. 15 с. 20 d. 25 .1 O 2 O d. 30You have a spring witk k+388 N/m When no extrenal forceis applied on it, the length of the spring is 4.5 cm When you exert F+ 8.5 N of force to stretch this spring,what is the length of the stretched spring in the unit of cm?A 0.650 kgkg block is attached to a spring with spring constant 14.0 N/mN/m. While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 46.0 cm/scm/s. What is the block's speed at the point where x=0.20 A?
- One way to measure the speed of a bullet is to fire it into a block of wood attached to a spring. The bullet hits the block and remains lodged in it. The spring is compressed after the collision. If the mass of the bullet is 8.0×10−38.0×10−3 kg, and the mass of the block is 4.0 kg, and the spring constant is 2400 N/m, then what is the initial speed of the bullet if the maximum compression of the spring is 0.087 m? Give your answer in m/s.2. A simple pendulum is suspended from the ceiling by means of a string. this time of length 2.33 m, which you release from rest at an angle of 45.4 degrees to the vertical. What will be the speed of the pendulum at the instant it reaches an angle of 36.3 degrees above the vertical? 2.18 m/s 3.69 m/s 2.98 m/s 5.17 m/sConsider a spring with a spring constant of (12.6 + A) N/m. What mass would you need to hang on the spring to achieve a period of (0.500 + B/100) s? Give your answer in grams (g) with 3 significant figures. A=20 B=78