2. a- What is the force generated by the spring when it is compressed 6.00 cm and have spring constant of 5600 N/cm? C. Calculated the elastic notential eneroy when compressed by 35 cm?

A 2.0 kg block is placed against a spring on a frictionless 30 degrees incline (from the horizontal). The spring, whose spring constant is 1960 N/m, is compressed 20 cm and then released. How far along the incline does it send the block? (Ans.= 4m)

A 10.0 g bullet is fired into and embeds itself in a 1.80 kg block attached to a spring with a spring constant of 21.5 N/m and whose mass is negligible. How far is the spring compressed if the bullet has a speed of 300 m/s just before it strikes the block, and the block slides on a frictionless surface? (Note: You must use conservation of momentum in this problem.) m

10 cm long spring, with a spring constant of 27 N/m, is used to reload the ball in a pinball machine. The spring is compressed by 4.0 cm by a mechanism in the machine and then let go. a. Calculate the elastic potential energy stored in the spring A new spring is fitted into the machine. It only needs to be compressed by 3.0 cm to store the same amount of elastic potential energy as the previus spring. b. Calculate the spring constant of this new spring The owner of the game wants to double the potential energy stored in this new spring. c. Calculate the compression of the spring needed in order to achieve this

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. 30

A10.0kgblock is released from pointAin the Figure below.The track is friction-less except for the portionBC, of length6.00 m. The block travels down thetrack, hits a spring with springconstantk, and compresses it0.300 mfrom its equilibrium position before coming to rest momentarily. If thecoefficient of kinetic friction between surfaceBCand block is μk= 0.328, what is the value of thespring constant k?

2. The 200 g pellet is pushed against the spring and D released from rest at A. Neglecting friction, determine the smallest deflection of the spring for which the 0.6 m k-540 N/m pellet will travel around the loop and remain in contact C E with the loop at all times. m= 200 g

9 Spaceman Spiff lost his ship's altimeter during a freak meteor storm, but he needs to know when to deploy his retro rockets to insure a safe landing back on earth. Luckily, he has his trusty toy dart gun whose spring has a 110 N/m spring constant. He loads his 7.2 gram suction cup dart, compresses the spring 4.0 cm, takes vertical aim at the cabin ceiling, and shoots. The suction cup dart flies 1.47 meters above its initial spring-compressed position. What is Spiff's altitude above earth? a

A 10.0 g bullet is fired into and embeds itself in a 2.30 kg block attached to a spring with a spring constant of 19.8 N/m and whose mass is negligible. How far is the spring compressed if the bullet has a speed of 300 m/s just before it strikes the block, and the block slides on a frictionless surface? (Note: You must use conservation of momentum in this problem.) m

A 10.0 g bullet is fired into and embeds itself in a 1.60 kg block attached to a spring with a spring constant of 21.9 N/m and whose mass is negligible. How far is the spring compressed if the bullet has a speed of 300 m/s just before it strikes the block, and the block slides on a frictionless surface? (Note: You must use conservation of momentum in this problem.) m