Answer:
a=1m/s²
Step-by-step explanation:
note that the moving body is accelerating from 10m/s to 15m/s, so in this case the initial velocity is 10mls, and the final velocity is 15m/s, and the body makes this increase in just 5seconds. so looking at what we've been given in the question, we can now calculate acceleration.
so our Data is;
V= 15m/s
U= 10m/s
t= 5m/s
a=?
we can find acceleration by using these two formulas;
1) V= U + at
15= 10+ a(5)
15=10+5a
make 5a the subject of the formula, and to make it the subject of the formula, we need to transpose 10m/s, and when we transpose it, it will
become a negative number because of crossing the equal sign
15-10=5a
5=5a
divide throughout by 5 to remain with a
5/5=5a/5
1=a
:. a=1m/s²
then the second formula is;
a= (V-U)/t
a=(15-10)/5
a=5/5
a=1m/s²