a person weighs 540 newtons on th earth. what is the person's mass?what would the person weigh on the moon where the acceleration due to gravity is 1.67 newtons per kilogram?
2) an elevator has a mass of 1000 kilograms
A. what is the tension force on its cables when it is stationary?
B. what force is needed to accelerate it upward at a rate of 2 meters per second per second?
C. what force is needed to accelerate it downward at a rate of 2 meters per second per second?
2006-10-29 05:24:24 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Physics
You need help with home work dont you
2006-10-29 05:27:30 · answer #1 · answered by Miguel 2 · 0⤊ 0⤋
weight equals mass times acceleration
force is equal to mass times net acceleration
2006-10-29 13:34:31 · answer #2 · answered by arbiter007 6 · 0⤊ 0⤋
F=ma
a) mass= 540/9.81= 55kg
weight on moon=540 x 1.67 /9.81 =91.9N
b) -F+weight=-ma
F=m(g+a)=1000x11.81=11810N
c) -F+weight=ma
F=m(g-a)
=1000 x (7.81)
=7810N
2006-10-29 13:27:56 · answer #3 · answered by Anonymous · 1⤊ 0⤋
i'm not doing your work
2006-10-29 13:29:23 · answer #4 · answered by platoon793 3 · 0⤊ 1⤋