A 60 g tennis ball approaches a racquet with a velocity of 50 ms^-1. After being hit, the ball

step 1 Hi, so in this question, we're told that a tennis ball hits the final velocity is 51 meters per

A 60 g tennis ball approaches a racquet with a velocity of...

A 60 g tennis ball approaches a racquet with a velocity of $50 \mathrm{~ms}^{-1}$. After being hit, the ball leaves the racquet with a velocity of $30 \mathrm{~ms}^{-1}$ in the opposite direction. Calculate the change in momentum of the ball during the collision.

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Key Concepts

Vector Quantities

Vector quantities, such as momentum, involve both magnitude and direction. This concept is critical in analyzing collisions since the direction of motion must be carefully considered when calculating the net change in momentum. Using proper sign conventions for velocity directions ensures accurate computations in these scenarios.

Impulse

Impulse is the term used for the change in momentum of an object and is equal to the product of the net force acting on it and the time interval over which the force is applied. Understanding impulse is important in collision scenarios because it connects the force applied during the collision to the resulting change in momentum.

Momentum

Momentum is a fundamental concept that represents the motion of an object and is calculated as the product of its mass and velocity. It is a vector quantity, meaning that it has both magnitude and direction, which is crucial in collision problems where the change in direction affects the overall momentum change.

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