physics for scientists and engeneers I

A 0.145-kg baseball pitched horizontally at 27 m/s strikes a bat and is popped straight up to a height of 43 m. If the contact time between the bat and the ball is 2.35 ms, calculate the average force [exerted by the bat on the ball] during contact. [Let the positive axis lie along the line from the batter to the pitcher, with the batter at the origin.] Please give magnitude and direction.

  1. 👍
  2. 👎
  3. 👁
  1. assuming the 27 was really horizontal, then the change in velocity has to be determined.

    To get 43m high (that is pretty high)...

    1/2 m vi^2=mg(43)
    vi=sqrt (86*9.8)

    change momentum=massball*deltaV

    ok,to get deltaV, deltaV=sqrt(86*9.8) j +27i)

    then force= changemometum/time

    you get direction from the velocity coordinates.

    1. 👍
    2. 👎
  2. im so lost that its not even funny... idk what im doing and it wouldve been better if this person wouldve used numbers instead of letters =(

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    Now assume that the pitcher in Part D throws a 0.145-kg baseball parallel to the ground with a speed of 32 m/s in the +x direction. The batter then hits the ball so it goes directly back to the pitcher along the same straight

  2. physics

    A 0.145 kg baseball is pitched at 42 m/s. The batter hits it horizontally to the pitcher at 58 m/s. GIVEN: m = 0.145 kg v = 42 m/s batter v = 58 m/s a. Find the change in momentum of the ball. p = mv p = (0.145)(42) p = 6.09 -->

  3. Physics w/ Calc

    A baseball approaches home plate at a speed of 43.0 m/s, moving horizontally just before being hit by a bat. The batter hits a pop-up such that after hitting the bat, the baseball is moving at 54.0 m/s straight up. The ball has a

  4. Physics Class

    A 0.140-kg baseball is pitched horizontally at 36.7 m/s. When a player hits the ball, it moves at the same speed, but in the opposite direction. If the bat and the ball are in contact for 0.450 ms, calculate the average force the

  1. physics

    major leaguer hits a baseball so that it leaves the bat at a speed of 29.0m/s and the angles of 36.9 above horizontal ignore resistance what two time is the baseball at a height of 10.0m above the point at which it left the bat?

  2. physics

    3)A baseball player holds a 36oz bat (weight = 10N) with one hand at the point O (Figure below). The bat is in equilibrium. The weight of the bat acts along a line 60cm (or 0.6m) to the right of O. Determine the force and torque

  3. physics- please respond

    A 0.130kg baseball pitched at 35.5 m/s is hit on a horizontal line drive straight back at the pitcher at 50.5 m/s . Part a: If the contact time between bat and ball is 4.25×10^−3 , calculate the magnitude of the force (assumed

  4. physics

    A baseball has a mass of 145 g. A bat exerts a force of 18,400 N on the ball. What is the acceleration of the ball

  1. physics

    A major leaguer hits a baseball so that it leaves the bat at a speed of 30.0 m/s and at an angle of 36.9° above the horizontal. You can ignore air resistance. (a) At what two times is the base- ball at a height of 10.0 m above

  2. physics

    A pitcher throws a 0.141-kg baseball toward the batter so that it crosses home plate horizontally and has a speed of 42 m/s just before it makes contact with the bat. The batter then hits the ball straight back at the pitcher with

  3. physics

    A baseball (m = 148 g) approaches a bat horizontally at a speed of 43.8 m/s (98.0 mi/h) and is hit straight back at a speed of 48.4 m/s (108 mi/h). If the ball is in contact with the bat for a time of 1.08 ms, what is the average

  4. Physics Energy

    A baseball player puts a baseball on a batting tee. The baseball bat is able to deliver 4.0x10^5 W of power and is in contact with the ball for 0.70 ms and a distance of 1.4 cm. The mass of the ball is 145 g. What is the next

You can view more similar questions or ask a new question.