Sunday
March 26, 2017

Post a New Question

Posted by on .

A major-league catcher gloves a 92 mi/h pitch and brings it to rest in 0.15 m.
1-If the force exerted by the catcher is 803 N, what is the mass of the ball?

  • phy - ,

    speed = 92 mi/hr * 1 hr/3600 s * 621 m/mi
    = 15.9 m/s

    average speed = 15.9/2 = 7.9 m/s

    time to stop = distance/speed = .15/7.9 = .0189 second

    force * time = change of momentum

    803 * .0189 = m (15.9 - 0)

    m = .955 kg

  • conversion error - ,

    speed = 92 mi/hr * 1 hr/3600 s * 1610 m/mi
    = 41.1 m/s

    average speed = 41.1/2 = 20.6 m/s

    time to stop = distance/speed = .15/20.6 = .0073 second

    force * time = change of momentum

    803 * .0073 = m (41.1 - 0)

    m = .142 kg

  • Help!! - ,

    A catcher stops 92 mi/h pitch in his glove bring it to rest in 0.15 m. If the force exerted by the catcher is 803N, what is the mass of the ball?

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question