physics please help
posted by emma .
Question #1 A 0.140kg baseball traveling 30.0m/s strikes the catcher's mitt, which, in bringing the ball to rest, recoils backward 14.0cm .
What was the magnitude of the average force applied by the ball on the glove?
question #2
How much tension must a rope withstand if it is used to accelerate a 1180kg car horizontally along a frictionless surface at 1.20m/s^2 ?

physics please help 
Elena
#1
a ={v(f)^2 – v(i)^2}/2•s =  v(i)^2}/2•s = 30^2/2•0.14=3.21•10^3 m/s^2
F = m•a =0.14•3.21•10^3 =450 N
#2
T=F= m•a = 1180•1.2 =1416 N
Respond to this Question
Similar Questions

Physics
A 0.145kg baseball traveling 35.0 m/s strikes the catcher's mitt which, in bring the ball to rest, recoils backward 11.0 cm. What was the average force applied by the ball on the glove? 
Physics
A 0.130 kg baseball, traveling 35.0 m/s, strikes the catcher's mitt, which recoils 11.0 cm in bringing the ball to rest. What was the average force (in newtons) applied by the ball to the mitt? 
physics
A 0.110 kg baseball, traveling 32.0 m/s, strikes the catcher's mitt, which recoils 14.0 cm in bringing the ball to rest. What was the average force (in newtons) applied by the ball to the mitt? 
physics
A 0.180 kg baseball, traveling 32.0 m/s, strikes the catcher's mitt, which recoils 13.0 cm in bringing the ball to rest. What was the average force (in newtons) applied by the ball to the mitt? 
Physics 6A
A 0.140 baseball traveling 34.0 strikes the catcher's mitt, which, in bringing the ball to rest, recoils backward 12.0. What was the magnitude of the average force applied by the ball on the glove? 
Physics
A 0.140 kg baseball traveling 39.0 m/s strikes the catchers mitt, which, in bringing the ball to rest, recoils backward 13cm. Question What is the average force applied by the ball to the glove? 
Physics
A 0.140 kg baseball traveling 39.0 m/s strikes the catchers mitt, which, in bringing the ball to rest, recoils backward 13 cm. What is the average force applied by the ball on the glove? 
Physics
A 0.140kg baseball traveling 39.0 m/s strikes the catcher's mitt, which, in bringing the ball to rest, recoils backward 13.0 cm. What was the average force applied by the ball on the glove? 
Physical
A 0.140kg baseball traveling 38.0m/s strikes the catcher's mitt, which, in bringing the ball to rest, recoils backward 15.0cm .What was the average force applied by the ball on the glove? 
Physics
A 0.133 kg baseball traveling 30.6 m/s strikes the catcher's mitt, which, in bringing the ball to rest, recoils backward 11.4 cm. What was the average force applied by the ball on the glove?