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2. Road Gap Jump at Black Rock Bike Park Salem: • He starts down the 9° ramp at A with an initial velocity of 14 ft/s •
Posted: Sat May 21, 2022 3:13 pm
by answerhappygod
- 2 Road Gap Jump At Black Rock Bike Park Salem He Starts Down The 9 Ramp At A With An Initial Velocity Of 14 Ft S 1 (45.13 KiB) Viewed 10 times
2. Road Gap Jump at Black Rock Bike Park Salem: • He starts down the 9° ramp at A with an initial velocity of 14 ft/s • There is negligible friction loss on the ramp • He and his bike weigh 230 lbs • AB = 42 ft, BC = 12 ft a) Use work and energy equations to calculate the mountain bikers velocity at B. (5 pts) b) Use work and energy equations to find his velocity when he hits the ground? (5 pts) c) Use impulse and momentum equations to find the vertical force Fthe biker must absorb on landing if the shocks on the bike help absorb the hit by taking 0.32 seconds to compress. Hint: given his horizontal speed doesn't change from Byou should be able to calculate his vertical speed using your answer in part b. (10 pts)