while the race car is accelerating from 0 to 44.7 m/s in 4.50 s?
these are the answer choices! please help me out!!
*9.8 N
*20 N
*201 N
*894 N
thanks!!!
2007-07-10 18:59:40 · 4 answers · asked by brittany 2 in Science & Mathematics ➔ Mathematics
a = [v(final) - v(initial)]/t
a = 44.7/4.50
a = 9.33 m/sec^2
F = mass * acceleration
F = 90 * 9.93
F = 894 N
there u go, choose D.
2007-07-10 19:04:03 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Assuming constant acceleration,
a = 44.7/4.5 = 9.9333 m/s^2
F = 90â(9.9333^2 + 9.80665^2)
F = 1,256 N
Horizontal force is 894 N
Vertical force is 883 N
2007-07-10 19:34:05 · answer #2 · answered by Helmut 7 · 0⤊ 0⤋
44.7/4.5
= 9.933333333333333333333333333333 m/s^2
fnet = ma
fnet = 90(9.93333333333333333)
fnet = 894
therefore D) is your answer!!! have fun
2007-07-10 19:04:04 · answer #3 · answered by brother Mohammed 2 · 0⤊ 0⤋
is he wearing restraints?
2007-07-10 19:02:38 · answer #4 · answered by sutil 3 · 0⤊ 0⤋