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brownhare189Lv1
29 Apr 2018
A wagon is rolling forward on level ground. Friction is negligible.The person sitting in the wagon is holding a rock. The total massof the wagon, rider, and rock is 92.5 kg. The mass of the rock is0.330 kg. Initially the wagon is rolling forward at a speed of0.460 m/s. Then the person throws the rock with a speed of 16.5m/s. Both speeds are relative to the ground. Find the speed of thewagon after the rock is thrown directly forward.
1 m/s
Find the speed of the wagon after the rock is thrown directlybackward.
2 m/s
A wagon is rolling forward on level ground. Friction is negligible.The person sitting in the wagon is holding a rock. The total massof the wagon, rider, and rock is 92.5 kg. The mass of the rock is0.330 kg. Initially the wagon is rolling forward at a speed of0.460 m/s. Then the person throws the rock with a speed of 16.5m/s. Both speeds are relative to the ground. Find the speed of thewagon after the rock is thrown directly forward.
1 m/s
Find the speed of the wagon after the rock is thrown directlybackward.
2 m/s
VikasLv10
18 Feb 2021
