Answer:
option C first gear
Explanation:
we know car is parking in uphill
so is we park park on neutral it will free move that is damage car
so we park car on uphill in first gear and turn wheel away from kerb
and park car on downhill in reverse gear and turn wheel toward kerb
so any gear may be reverse or first
so correct option is C first gear
Answer:
three balls have the same speed
Explanation:
In a parabolic motion we have that
but the time just before the balls hit the ground is
Hence we have
ball A
ball B
ball C
Hence, all three balls have the same speed just before hit the groug
vA=vB=vC
I hope this is useful for you
regards
If the rod is in rotational equilibrium, then the net torques acting on it is zero:
∑ τ = 0
Let's give the system a counterclockwise orientation, so that forces that would cause the rod to rotate counterclockwise act in the positive direction. Compute the magnitudes of each torque:
• at the left end,
τ = + (50 N) (2.0 m) = 100 N•m
• at the right end,
τ = - (200 N) (5.0 m) = - 1000 N•m
• at a point a distance d to the right of the pivot point,
τ = + (300 N) d
Then
∑ τ = 100 N•m - 1000 N•m + (300 N) d = 0
⇒ (300 N) d = 1100 N•m
⇒ d ≈ 3.7 m
Answer:
Explanation:
Work = Force times displacement. Therefore,
W = 3150(75.5) so
W = 238000 N*m