# If a #2 kg# object is being constantly accelerated from #0m/s# to #15 m/s# over # 6s#, how much power is being applied at #t= 3 #?

##### 1 Answer

P = 19 W

#### Explanation:

To solve this problem we will first find the value of acceleration involved, then use that to determine the resultant force required to produce that acceleration, then find the velocity at 3 s, and lastly calculate the power.

The object has a constant acceleration so the force is constant and the equations of uniform acceleration can be used.

**1. Calculate the acceleration.**

Use

**2. Resultant force.**

**3. Velocity at 3 s.**

We can use an equation of constant acceleration to determine the velocity of the object at 3 seconds.

**4. Power.**