50.1K

Verified Solution

Link Copied!

Please show work!

a) A 80 kg baseball player jumps with ahorizontal velocity of 8.1 m/s and collides with an 89

kg teammate who jumps with a horizontal velocity of 2.7 m/s inthe opposite direction. If the players became tangled in mid-air,what would their combined horizontal velocity be after theimpact?

A) 2.41 m/s   B)2.99 m/s   C) 5.26 m/s  D) 5.54 m/s

b) After the collision, which horizontaldirection do the tangled players move?

A) the players do not move after the collision  B) in the initial direction of the 80kg player C) in the initial direction of the 89 kgplayer D) the players move vertically upward afterthe collision

c) A baseball (weight 5 oz.) thrown at 88 mphstrikes a 30 oz. bat moving at a velocity of 72 mph. Thecoefficient of restitution between the baseball and bat is 0.49.How fast is the bat moving after it strikes the baseball?

A)   37.9 mph B)48.2 mph C) 60.3 mph D) 63.1mph

d) How fast is the baseball moving afterstriking the bat in part c)?

A) 54.6 mph   B)116.3 mph C) 138.7 mph D) 141.5mph

e) If the coefficient of restitution was higherin part c), how would that affect the velocity of the ball afterthe collision (no calculations needed)?

A) the final velocity of the ball would be zeroB) the final velocity of the ball would be slowerC) the final velocity of the ball would not changeD) the final velocity of the ball would befaster