Find the instantaneous linear veloity of the sweet spot

Reference no: EM13536032

A baseball pitcher pitches a fastball with a horizontal velocity of 40 m/s. The horizontal distance from the point of release to home plate is 17.50 m. The batter decides to seing the bat 0.30 s after the ball was released by the pitcher. The average angular velocity of the bat is 12 rad/s. The angular displacement of the bat from the batter's shoulder to hitting positions above the plate is between 1.5 and 1.8 rad.

a. Will the bat be in a hitting position above the plate when the ball is above the plate? Assumme the pitch is in the strike zone.

b. Assume that the batter does hit the ball. If the bat's instantaneous angular velocity is 30 rad/s at the instant of contant, and the distance from the sweet spot on the bat to the axis of rotation is 1.25 m, what is the instantaneous linear veloity of the sweet spot at the instant of ball contact?

Reference no: EM13536032

Questions Cloud

How much time before the object lands : A ball is thrown at an angle of 40o and speed 110m/s. Assume the object is launched from the origin of your coordinate system. How much time before the object lands

Explain isoborneol can be converted to camphor : Both borneol and isoborneol can be converted to camphor via Jones oxidation. Will both undergo the reaction at the same rate. Explain.

Basic transactions for three accounting cycles : Prepare an income statement and balance sheet for each fiscal year - Basic transactions for three accounting cycles: perpetual system

Explain molecular bromine is 24 per cent dissociated : Molecular Bromine is 24 per cent dissociated at 1600 K and 1 bar in the equilibrium Br2 equilibrium 2 Br. Calculate K at a) 1600 K and b) 2000 K given dH(reaction) = 112 kJ/mol over the temperature range.

Find the instantaneous linear veloity of the sweet spot : A baseball pitcher pitches a fastball with a horizontal velocity of 40 m/s. The horizontal distance from the point of release to home plate is 17.50 m. what is the instantaneous linear veloity of the sweet spot at the instant of ball contact

Calculate the power output of the pump and the pressure head : A pump draws water through a 150 mm diameter pipe from a reservoir whose surface level is at datum level and discharges it through a 100 mm diameter pipe to another reservoir whose surface level is 72 m above datum level.

Explain the rate constants of some reactions double : The rate constants of some reactions double with every 10 degree rise in temperature. Assume that a reaction takes place at 295 K and 305 K. What must the activation energy be for the rate constant to double as described

What is the kinetic energy stored in the flywheel : A car is designed to get its energy from a rotating flywheel with a radius of 2.25 m and a mass of 525 kg. What is the kinetic energy stored in the flywheel

Find the magnitude and direction of the electric field : Two spherical shells have a common center. A -3.00 x10-6 C charge is spread uniformly over the inner shell, which has a radius of 0.050 m. A +4.00 x10-6 C charge is spread uniformly over the outer shell, which has a radius of 0.15 m. Find the magnitu..

User Account

All Pages