A 450 kg mass is accelerated at 2.5 m/s^2.
a. What is the net force causing this acceleration?
b. How much distances will it cover after 3.5s
Please show me how to do this problem.
2007-10-20 13:28:29 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Physics
well the net force would be the force of the push, force of friction, for the x and for y it would be force of gravity and normal force
Use a kinematics eqaution
(if the initinal velocity was 0 m/s)
Xf=Xi+ViT+1/2AT^2
Xf=0+0+1/2*2.5*3.5^c
Xf=15.3125 meters
2007-10-20 13:49:50 · answer #1 · answered by Anonymous · 0⤊ 0⤋
F = ma and the units are Newtons, kg, and m/s²
F = 450*2.5 = 1125 N
s = (1/2)at ²= (1/2)*2.5*(3.5)² = 15.3125 meters
Doug
2007-10-20 13:36:42 · answer #2 · answered by doug_donaghue 7 · 0⤊ 1⤋
The other questions present correct methods and answers, so I won't repeat them. However, they neglect significant figures, which would result in lost points on a hw assignment. Your answer should be limited to two significant figures, so Fnet = 1.1 x 10^3, and Displacement = 15 m.
2007-10-20 14:02:38 · answer #3 · answered by Anonymous · 0⤊ 0⤋