An Object Attached To An Ideal Massless Spring Is Pulled Across A Frictionless Surface The Position Of The Mass Is Give 1 (14.63 KiB) Viewed 33 times
A 400-kg car moving at 20 m/s hits from behind a 600-kg car
moving at 10 m/s in the same direction. The two stick together
and move with velociy V. Calculate V
19.9 m/s
60 m/s
15 m/s, just the average speed
14 m/s
An object attached to an ideal massless spring is pulled across a frictionless surface. The position of the mass is given by rad x(t) = (0.2m) Sin (200 ++ ). Calculate the initial speed of the mass. (The initial speed is the speed at t=0) л S 3 A. 4 m/s B.0.2 m/s OC. 20 m/s D. 2 m/s
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