Question

A roller-coaster car of mass 1.60 x 103 kg is initially at the top of a rise at point . It then moves 30.6 m at an angle of 45.0° below the horizontal to a lower point® (a) Find both the potential energy of the system when the car is at points and and the change in potential energy as the car moves from point& to point ®, assuming y 0 at point potential energy at potential energy at change in potential energy (b) Repeat part (a), this time choosing y 0 at point O, which is another 15.0 m down the same slope from point ®. potential energy at potential energy at change in potential energy 18. 1.5 points SerCP11 5A.P64 Mv Notes Ask Your Teacher

Answer 1

20.6 m 450 G-6004s*팬 21-64시 こ 3.39 3 26メ10 5 T

3a. m 5 A'= (30.6+15) Go 45。 32-2489 H= 21.64m = 1.6x19% 9.8メ31.2479 = 5.05663 치。Sj at poi 1.6メ1041-2 (32. 2429-21.64) 166-347 치13丁 1 . 66347メ1 o5丁