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23 Nov 2019
A steel ball of mass 0.400 kg is fastened to a cord that is 70.0 cmlong and fixed at the far end. The ball is then released when thecord is horizontal. At the bottom of its path, the ball strikes a2.50 kg steel block initially at rest on a frictionless surface.The collision is elastic.
(a) Find the speed of the ball just after collision.
1 m/s
(b) Find the speed of the block just after collision.
2 m/s
A steel ball of mass 0.400 kg is fastened to a cord that is 70.0 cmlong and fixed at the far end. The ball is then released when thecord is horizontal. At the bottom of its path, the ball strikes a2.50 kg steel block initially at rest on a frictionless surface.The collision is elastic.
(a) Find the speed of the ball just after collision.
1 m/s
(b) Find the speed of the block just after collision.
2 m/s
Casey DurganLv2
23 Nov 2019
