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The block weighs 20 lb. It collides with the wall at a speed of 30 ft/s. If the coefficient of restitution is 0.6, what is the speed of the block immediately after impact? Note that conservation of linear momentum is not useful because the wall is immovable, which means it is part of the earth and has infinite mass.

The block weighs 20 lb. It collides with the wall at a speed of 30 ft/s. If the coefficient of restitution is 0.6, what is the speed of the block immediately after impact? Note that conservation of linear momentum is not useful because the wall is immovable, which means it is part of the earth and has infinite mass.

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The block weighs 20 l b . It collides with the wall at a speed of 30 f t / s . If the coefficient of restitution is 0.6 , what is the speed of the block immediately after impact? Note that conservation of linear momentum is not useful because the wall is immovable, which means it is part of the earth and has infinite mass.

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