Streamlined means less air resistance. The car will need less force so less fuel in order to overcome air resistance. This will make it more fuel efficient.
The Earth is around 4 times as big as the moon.
Answer:
B. blocks 2 & 3.
Explanation:
Block 1 has equal & opposite forces acting on it.
Block 2 has 5N on one side, 3N on the other. It will move in the direction the 5N of force is pushing.
Block 3 has no opposing force.
Answer:
The minimum possible coefficient of static friction between the tires and the ground is 0.64.
Explanation:
if the μ is the coefficient of static friction and R is radius of the curve and v is the speed of the car then, one thing we know is that along the curve, the frictional force, f will be equal to the centripedal force, Fc and this relation is :
Fc = f
m×(v^2)/(R) = μ×m×g
(v^2)/(R) = g×μ
μ = (v^2)/(R×g)
= ((25)^2)/((100)×(9.8))
= 0.64
Therefore, the minimum possible coefficient of static friction between the tires and the ground is 0.64.
Answer:
a = 10 m/s²
Explanation:
<u><em>Given:</em></u>
Force = F = 50 N
Mass = m = 5 kg
<u><em>Required:</em></u>
Acceleration = a = ?
<u><em>Formula:</em></u>
F = ma
<u><em>Solution:</em></u>
<em>Rearranging the formula for a</em>
=> a = F/m
=> a = 50/5
=> a = 10 m/s²
