A 0.25 kg baseball is travelling horizontally to the right at 40 m/s when it was hit by a bat and it bounced off at 60 m/s 60o above the horizontal to the left. How much impulse was applied to the ball by the baseball bat?

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British Gravitational Bg System Of Units

Measuring is the comparison of a particular physical quantity with its reference value. A unit is a fixed physical quantity. The length is a physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.