Question

A plane goes from a standstill to 350 mi/hr in about 45 sec. What is the plane's acceleration?

Answer 1

Answer:

The acceleration is 466.7m/s^2

Step-by-step explanation:

Given

$u = 0m/s$ -- Initial Velocity

It is 0 because the plane starts from a standstill

$v = 350mi/h$ -- final velocity

$t = 45s$ -- time

Required

Determine the acceleration

This is calculated using Newton's first equation of motion

$v = u + at$

Convert time to hour

$t = 45s$

$t = \frac{45}{60}hr$

$t = 0.75hr$

Substitute values for v, u and t

$350 = 0 + a*0.75$

$350 = 0.75a$

Divide both sides  by 0.75

$\frac{350}{0.75} = a$

$466.67 = a$

$a=466.67m/s^2$

Hence, the acceleration is 466.7m/s^2