Answer:
From first Newton's equation of motion:

Substitute the variables:

Acceleration is 2 ms-²
Answer:
B
Step-by-step explanation:
....................
Answer:
.
Implied:
.
Step-by-step explanation:
Get rid of the denominator by multiplying both sides of this equation with
:
.
Isolate
by moving
to the left-hand side of the equation. That is: add
to both sides of this equation.
.
By the symmetric property of equalities,
