Question

A boat's initial velocity is 30 m/s. After 2.5 seconds, its velocity

is 5 m/s. What is the boat's rate of acceleration?
a -10 m/s
b 27 m/s
C 5 m/s2
d 20 m/s4

Answer 1

-10 m/s²

Step-by-step explanation:

We know ,

• Rate of change of velocity is called acceleration .

`\longrightarrow` Acclⁿ = v - u / t

`\longrightarrow` Acclⁿ = (5-30) / 2.5 m/s²

`\longrightarrow` Acclⁿ = -25/2.5 m/s²

`\longrightarrow` Acclⁿ = -10 m/s²