Final answer:
No, the force exerted by the racket on a tennis ball would not be enough to lift a person off the ground.
Step-by-step explanation:
A tennis ball may leave a top player's racket on the serve with a speed of 65.0 m/s. The force exerted on the ball by the racket depends on the mass of the ball. To lift a person off the ground, a considerable amount of force is needed. The force exerted by the racket on the ball is not enough to lift a person off the ground because the mass of a person is significantly greater than the mass of a tennis ball. Therefore, the force from the racket would not be enough to overcome the force of gravity on a person's body.