I need help setting up this problem. Help asap! A steel ball with mass 40.0 g is

Question

I need help setting up this problem. Help asap!
A steel ball with mass 40.0 g is dropped from a heightof 3.20 m onto a horizontalsteel slab. The ball rebounds to a height of 1.30 m. (a) Calculate the impulse delivered to the ball duringimpact. N·s

(b) If the ball is in contact with the slab for 3.00 ms, find the average force on the ballduring impact. N I need help setting up this problem. Help asap!
(a) Calculate the impulse delivered to the ball duringimpact. N·s

(b) If the ball is in contact with the slab for 3.00 ms, find the average force on the ballduring impact. N

Explanation / Answer

The speed of the ball before imapct on the ground is    V1 = 2gh         =2(9.8)(3.2)         = -7.91m/s speed of the ball when it leaves the gound is V2= 2gh = 2(9.8)(1.3) = 5.04m/s impulse I = m (V2 - V1 )                = (0.04kg)[ 5.04 - (-7.91) ]                =0.5186kgm/s force on the ball is          F = I /t            = 0.5186 / 3x10^-3s            = 172.88 N             =173N

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.