How does a car’s average speed differ from its instantaneous speed?

a. average speed is computed for the entire duration of a trip and instantaneous speed is measured at a particular instant.

b. instantaneous speed is measured at each particular instant and average speed is the sum of the instantaneous speeds.

c. average speed is computed for each particular instant and instantaneous speed is the sum of the averages.

Instantaneous speed is measured at each particular instant, and average speed is the sum of the instantaneous speeds.

Option (A) is correct.

Explanation:

The speed of a car is defined as the ratio of the distance traveled by the car to the time taken by the car.

speed = distance / time

The average speed of the car is defined as the ratio of the total distance traveled by the car to the total time taken by the car.

Average speed = total distance traveled / total time taken

Instantaneous speed is defined as the speed of the car at any instant.

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

we need to know the time interval during which the force acts. impulse of force = momentum change