m=1800 kg has the greatest momentum
<u>Explanation:</u>
Linear momentum is defined as the product of mass and velocity of a body. It is directly proportional to mass and velocity and is given by the expression
P=mv
where P denotes linear momentum,m denotes mass and v denotes velocity.
given that
velocity of both objects is v=5 m/s
Mass of the first object m=
Mass of the second object m=1800 kg
velocity of both objects is same. The second object has higher mass than first.
When mass increases, momentum increases with it.
Thus the second object with m=1800 kg has higher momentum than first.
1. Ideal Mechanical Advantage (IMA): 9
Explanation:
For a wheel and axle system like the steering wheel, the IMA is given by:
where
is the radius of the wheel
is the radius of the axle
For the steering wheel of the problem, we see that and
, so the IMA is
2. Efficiency: 88.9%
Explanation:
The efficiency of a system is defined as the ratio between the AMA (actual mechanical advantage) and the IMA:
In this problem, AMA=8 and IMA=9, so the efficiency is