Recent content by hrithikguy

Ah thank you! I plugged in 8.85 now and it came out to 11.996, which is close enough. Thanks!

So does this mean that n = -mg, so m * a_c = 2mg ? a_c = 2ga_c = 19.6 v^2/r = 19.6 v^2 = 19.6 * 4 = 78.4 v = 8.85 9.8 * h = 1/2 * 9.85^2 + 8 * 9.8 x = 12.95 Hmm.. this is closer, but still not correct.

Homework Statement Part of a roller-coaster ride involves coasting down an incline and entering a loop 8.00 m in diameter. For safety considerations, the roller coaster speed at the top of the loop must be such that the force of the seat on a rider is equal in magnitude to the rider's weigt...