B) Use the formula v= u + at to find the velocity, when • the initial velocity is 3 m/s
• the acceleration is 1.5 m/s2
• the time is 7 seconds
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Answer is in the photo. I can only upload it to a file hosting service. link below!

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the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!