A)Determine the acceleration of the ball during the throw. B)Determine the accel

Question

A)Determine the acceleration of the ball during the throw.

B)Determine the acceleration of the skater during the throw.

A 58-kg skater initially at rest throws a 4.0-kg medicine ball horizontally to the left. Suppose the ball is accelerated through a distance of 1.0 m before leaving the skater?s hand at a speed of 7.0 m/s . Assume the skater and the ball to be point-like, the surface to be frictionless, and ignore air resistance. Use a vertical y-axis with the positive direction pointing up, and a horizontal x-axis with the positive direction pointing to the right. A)Determine the acceleration of the ball during the throw. B)Determine the acceleration of the skater during the throw.

Explanation / Answer

here given are

vf=7m/sec

m1=58kg

m2=4kg

d=1m

vf^2-vi^2=2ad

now interchanging the equation we get
a= vf^2-vi^2/2d
=7.0^2 - 0^2/2(1m)
a=24.5m/s^2

force on the 4kg medicine ball

=ma
=(4kg)(24.5m/s^2)
=98N
a = F/m
a=98/58kg
a=1.68m/s^2

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---