A car traveling at 7 m/s accelerates at 2,5 m/s2 to reach a speed of 12 m/s. How long does it take for this acceleration?

The car took 2.5 seconds for this acceleration

Explanation:

Constant Acceleration Motion

It's a type of motion in which the velocity of an object changes by an equal amount in every equal period of time.

Being a the constant acceleration, vo the initial speed, vf the final speed, and t the time, the following relation applies:

Solving for t:

The car was traveling at v0=7 m/s, accelerated at 2.5 m/s^2, and reached a speed vf=12 m/s. Calculating the time taken:

t=2 sec

The car took 2 seconds for this acceleration

the force required to move the cart is divided by three or 33.33 n.

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