A tennis ball is lightly thrown vertically upwards to be struck by the racquet at the peak of the trajectory of the ball. A 350 g tennis racquet hits the ball with a velocity of 30. m⋅s−1. Both racquet and ball move with a horizontal velocity of 25 m⋅s−1 immediately after the collision. What is the mass of the ball, in grams?

massxgravity x heght=weightxheight= pe

4900=490xh

h=10

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg