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1)When a 58 g tennis ball is served, it accelerates from rest to a speed of 45 m/s. The impact with the racket gives the ball a constant acceleration over a distance of 44 cm. What is the magnitude of the net force acting on the ball?

2)A skater with an initial speed of 7.60 m/s is gliding across the ice. Air resistance is negligible. (a) The coefficient of kinetic friction between the ice and the skate blades is 0.100. Find the deceleration casued by kinetic friction. (b) How far will the skater travel before coming to rest?

Forces and Newton's Laws of Motion

please give me a given and formula

answer at the back book

1) 130N

2) a) 0.980 b) 29.5 m

2)A skater with an initial speed of 7.60 m/s is gliding across the ice. Air resistance is negligible. (a) The coefficient of kinetic friction between the ice and the skate blades is 0.100. Find the deceleration casued by kinetic friction. (b) How far will the skater travel before coming to rest?

Forces and Newton's Laws of Motion

please give me a given and formula

answer at the back book

1) 130N

2) a) 0.980 b) 29.5 m

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