Answer:
yes, because you guy's are moving in a car. because if you think about it, your parents are driving, but the cars moving so basically you guys would be moving.
please mark as brainly
Answer:
μ = tanθ = tan30 = 0.58
Explanation:
μ = force parallel/force perpendicular = mgsinθ/mgcosθ = tanθ
Kinetic energy depends upon mass and velocity ! so the vehicle which has both the quality,has greatest KE !
Answer:168 W
Explanation:
Given
Power needed 
initial Launch velocity is v
Energy of projectile when it is launched 
Power when it is launched with 2 v
Divide 1 & 2 we get
Answer:
1.379 m/s2
Explanation:
F=ma
There is a negative force from the elevator...
F = (715 kg) (-9.81 m/s2)
F = -7014.15 N
Cable + elevator = 8000 N + (-7014.15 N)
F = 985.85 N
a = F/m
985.85 N/715 kg = 1.379 m/s2
