Ahonda civic hybrid weighs about 2850lb .calcculate the weight of the car in newtons. (note: 0.22 lb =1n ).calculate the mass of the car in kilograms. (note: 1 kg on earth's surface has a weight of 10 n ).

To solve this problem we will apply Newton's second law for which weight is defined as the product between mass and acceleration of gravity. That is to say

Here,

m = mass

g = Gravitational acceleration

If we have that 0.22lb is equal to 1N, then the weight will be

Gravitational force is equal to , then

Therefore the mass of the car is 1320.5Kg

the tires are rotating at 0.434 rpmlinear speed=45 m/sdiameter=0.550 mradius=0.275 mnow v= rωω= v/rω=45/0.275ω=163.6 rad/sω=163.6 rad/s (1rev/2π rad) (60s/1m)ω=1563 rpm