Question: please help! A wagon is coasting forward at speed m along a straight and level road. TWhen 10% of the wagon's mass is thrown o
please help!

A wagon is coasting forward at speed m along a straight and level road. TWhen 10% of the wagon's mass is thrown o in the forward direction parallel to the ground: the wagon is brought to a halt. If the direction in which this 10% mass is thrown is exactly reversed but its speed relative to the wagon remains the same; the wagon accelerates to a new speed VB. Calculate VB . FA
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