Problem 2: Roller Coaster Tycoon!A roller coaster broke and sends your cart at a speed of 100 m/s! The combined mass of you, your friend, and thecart is 120 kg. If the average frictional force on...

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Problem 2: Roller Coaster Tycoon! A roller coaster broke and sends your cart at a speed of 100 m/s! The combined mass of you, your friend, and the cart is 120 kg. If the average frictional force on the cart along the track is 20 N and the total length of the track from point A to D is 100 m, find the speed of the cart at point D. Problem 3: Psyclone ’” / A 30° A pendulum system is released from rest at point A. It swings down to point B, and then up to point C. a) If the mass at the end of the string is 0.2 kg, and the length of the string is 0.4 m, what is the velocity of the mass at point B? b) How does the height at point C compare to the height at point A? Use conservation of energy to explain. nt nt A and drives up a frictionless hill at a constant velocity of 4 m/s. It then travels v for 20 m, and down a 10 m frictionless hill. Re TS Problem 5: Bombs away! —— — Se W0 Sacwe - —— - ~ One “ee —- -— “= N\ Foong = 20 N A 15.5 kg cannonball is shot out of a 1.5 m high cannon with an initial velocity of 30 m/s. The cannonball flies through the air, and then gets lodged into the ground. If the ground exerts an average force on the ball, Fzons, of 900 N, how far underground will it go? (*Note: For this question, you can assume the cannonball goes into the ground and only travels downwards) Problem 6: *Note - Diagram Not Drawn to Scale 1.5m <—> 2X Fons = 20N A 5 kg bowling ball is thrown with an initial velocity of 25 m/s such that it slides across a surface with friction for 4 m. The co-efficient of friction along this section, ly = 0.3. his 1.5 m deep. On the other side of the wall is a frictionless Afterwards, the ball travels through a foam wall whic its velocity is 25 m/s. ramp. After the ball slides to the bottom of the ramp, | i Calculate Ad, the length of the ramp.