Suppose you have a car traveling down the road at constant speed and not changing direction. it is experiencing gravity, wind resistance and frictional forces from the road. what can be said about the car’s acceleration?

zero

Explanation:

As the speed is constant and the direction is not changing then we can say that the acceleration of the car is zero.

Acceleration is defined as the rate of change of velocity.

As the speed is constant so the magnitude of velocity is constant and the direction remains same so the direction of velocity remains same. it means the velocity if constant. And hence the acceleration is zero.

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27