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Posted: **Mon Jul 11, 2022 2:34 pm**

: A Block Attached To A Horizontal Spring With A Spring Constant K 200 N M Is Displaced To X 6 Cm And Released From R 1 (147.54 KiB) Viewed 171 times

: A Block Attached To A Horizontal Spring With A Spring Constant K 200 N M Is Displaced To X 6 Cm And Released From R 2 (143.57 KiB) Viewed 171 times

A block attached to a horizontal spring with a spring constant k = 200 N/m is displaced to x = +6 cm and released from rest. The time needed for the block to reach x = +6 cm for the first time is 0.2 sec. Determine the maximum restoring force applied on the block and its maximum acceleration.
A simple pendulum is formed of a rope of length L = 1.6 m and a bob of mass m. When the pendulum makes an angle 0 = 10° with the vertical, the speed of the bob is 2 m/s. The angular speed, 0', at the lowest position is equal to: (g = 10 m/s^2)