Question

Angel is traveling on her bike 4 m/s. If she accelerates at a rate of 1.5 m/s2 for 2 s, what is her final velocity?

Answer 1

Answer:

7m/s

Explanation :

a = ( v - u ) / time

1.5 = ( v - 4 ) / 2

( v - 4 ) / 2 = 1.5

( v - 4 ) = 1.5 x 2

v - 4 = 3

v = 3 + 4

v = 7

Answer 2

Given

Angel is traveling on her bike 4 m/s. If she accelerates at a rate of 1.5 m/s² for 2 s

To Find

Final velocity

Solution

We know that

$\sf \longrightarrow v=u+at$

Here

• v = Final velocity
• u = Initial velocity
• a = Acceleration
• t = Time

According to the question

We are asked to find final velocity

Therefore

We must find "v"

Given that

Angel is traveling on her bike 4 m/s. If she accelerates at a rate of 1.5 m/s² for 2 s

Hence

• u = 4 m/s
• a = 1.5 m/s²
• t = 2 s

Substituting the values

We get

$\sf \longrightarrow v=4+1.5 \times 2 \ m/s$

$\sf \longrightarrow v=4+3 \ m/s$

Therefore

$\sf \longrightarrow v=7 \ m/s$

Hence

Final velocity = 7 m/s