Question

Aisha is sittinn on frictionless ice and holding two heavy ski boots. Aisha weighs 637 N,...

Aisha is sittinn on frictionless ice and holding two heavy ski boots. Aisha weighs 637 N, and each boot has a mass of 4.5 kg. Aisha throws both boots forward aat the same time, at a velocity of 6.00 m/s relative to her. What is Aisha's resulting velocity?

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Answer #1

Initially both Aisha and boots are at rest.

After throwing the boots,

Velocity of Aisha with respect to ground is (A stands for Aisha , B stands for boots, G stands for ground)

Given that velocity of boots relative to Aisha is

Velocity of boots relative to ground is

Conserving the momentum of Aisha and boots before and after throwing boots,

( mass of Aisha is , mass of 2 boots )

Magnitude of Aisha's velocity is   and direction is opposite to the direction of motion of boots.

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