With what force is a player hitting a 0.4 kg baseball, if it accelerates at a rate of 80 m/s2?
A tennis player hits a tennis ball with a force of 330 N, and it accelerates at the rate of 5,500 m/s2. What is the mass of the tennis ball?
Li is pedaling his bike with a force of 220 N. The combined mass of Reese and her bike is 55 kg. What is the acceleration of his bike?
2006-11-30 05:01:15 · 3 answers · asked by maconheira 4 in Education & Reference ➔ Homework Help
Fnet = Net Force, a = acceleration, m = mass
Fnet = a * m
1) Force = 80m/s2 * 0.4kg = 32N
m = Fnet/a
2) m = 330N/5500m/s2 = 0.06Kg
a = Fnet/m
3) a = 220N/55Kg = 4m/s2
2006-11-30 05:12:31 · answer #1 · answered by Jeffrey H 2 · 0⤊ 0⤋
f=m*a
0.4* 80
=32N
f=ma
330=5500m
m=330/5500
m=0.06kg
f=ma
220=55a
a=220/55
a=4m/s2
2006-11-30 07:26:50 · answer #2 · answered by fatima b 4 · 0⤊ 0⤋
F = m * a
= .4(80)
= 32N
do the rest!!
2006-11-30 05:04:38 · answer #3 · answered by thunnus 2 · 0⤊ 0⤋