2. harry is pushing a car down a level road at 20 m/s with a force of 243 n. the total force
acting on the car in the opposite direction, including road friction and air resistance, is which on
the following?
a) more than 243 n.
b) equal to 243 n.
c) less than 243 n.

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.

you get 2.3=1.21*\frac{a}2 or 4.6=1.21a or a=3.802 (b)

explanation:

a. spokes of a wheel.

as indicated in the question radial contains rad, also found in radius, so the fracture's would span the radius.