A 2400-kg truck accelerates from 10 m/s to 30 m/s in 6 s. The net force on the truck is?

1 ⤊

a. 816 N
b. 12,000 N
c. 8000 N
d. 78,400 N

2007-02-05 03:51:25 · 3 answers · asked by kacwccj 3 in Science & Mathematics ➔ Mathematics

Acceleration is 20/6 = 3.3

F = 2400 * 3.3 = 8000

2007-02-05 03:56:46 · answer #1 · answered by gebobs 6 · 1⤊ 0⤋

C
F=MA

A= change in velocity/change in time
=(30-10)/6
= 3.3 recurring
F= 2400 * 3.3 recurring
F= 8000 N

2007-02-05 03:58:16 · answer #2 · answered by cogplasma 2 · 0⤊ 0⤋

The mean acceleration is 20/6 m/s^2
Ao force = mass* acceleration = 2400 *20/6 = 8,000 Newton

2007-02-05 07:57:21 · answer #3 · answered by santmann2002 7 · 0⤊ 0⤋