banking angle is 0, and the coefficient of static friction is u. (a) Determine the range of the range of speeds possible if R = 100 m, 0 10°, and u 0.10 (slippery conditions)? of the road is R, the speeds the car can have without slipping up or down the road. (b) What is P 7.54 A 0.400 kg pendulum bob passes through the lowest part of its path at a speed of 3.00 m/ s. (a) What is the tension in the pendulum cable at this point if the pendulum is 80.0 cm long? (b) When the pendulum reaches its highest point, what angle does the cable make with the vertical? (c) What is the tension in the pendulum cable when the pendulum reaches its highest point? P 7.60 A roller coaster travels in a circular path. (a) Identify the forces on a passenger a the top of the circular loop that cause centripetal acceleration. Show the directic of all forces in a sketch. (b) Identify the forces on the passenger at the bottom the loop that produce centripetal acceleration. Show these in a sketch. (c) Bas uers to parts (a) and (b), at what point, top or bottom, should the se ? ld) Assume the speed of the roller coas force exerted by the the without slipping up or down the road. (b) What is range of speeds possible if R = 100 m, 0=10°, and u0.10 (slippery conditions)? P 7.54 A 0.400 kg pendulum bob passes through the lowest part of its path at a speed of 3.00 m/ s. (a) What is the tension in the pendulum cable at this point if the pendulum is 80.0 cm long? (b) When the pendulum reaches its highest point, what angle does the cable make with the vertical? (c) What is the tension in the pendulum cable when the pendulum reaches its highest point? ch Р 7.60 A roller coaster travels ina circular path. (a) Identify the forces on a passenger at the top of the circular loop that cause centripetal acceleration. Show the direction of all forces in a sketch. (b) Identify the forces on the passenger at the bottom of the loop that produce centripetal acceleration. Show these in a sketch. (c) Based or your answers to parts (a) and (b), at what point, top or bottom, should the seat exe the greatest force on the passenger? (d) Assume the speed of the roller coaster is 4.00 m/s at the top of the loop of radius 8.00 m. Find the force exerted by the s n a 70.0 kg passenger at the top of the loop. Then, assume the speed remains f the loop and find the force exerted by the seat on the nirtent with your choice of ans