- #1
HarleyM
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Homework Statement
a baseball with a mass of 0.152 kg is moving horizontally at 32.0 m/s [E] when it is struck by a bat for 0.00200 seconds. The velocity of the ball just after the collision is 52.0 m/s [W 20 N]
a) Find the impulse experienced by the ball
b) find the average net force of the ball
Homework Equations
FnetΔT=M(V2-V1)
The Attempt at a Solution
Im confused between impulse and net force first of all.. I think I calculated both but I am unsure, Also I am unsure about which directions I should set at positive and negative,
I set East and North as positive
Fnetx(0.002)=(0.152)((-)52cos20-32) ( 52 is negative in this case since movement in x direction is towards W?)
Fnet= - 6145.36, negative so [W]
Fnety(0.002)=(0.152)(52sin20-0) ( 52 is positive here since i set north to = positive)
Fnet=1351.28 N
I make the triangle with my components and solve for hypotenuse through pythag. = 6292.17 ∅= W 12.4° N
IS the hypotenuse equal to net force and the components equal to impulse?
DO my directions and calculations look correct?
Thank you everyone who takes the time to read this and make an attempt at helping me !