Question

A cart changes its speed from 90 m/s to 100 m/s in 10 seconds. during this interval its acceleration is

Answer 1

the acceleration is 1

Answer 2

Answer:

$1 \frac{m}{s^{2} }$

Explanation:

Hello,I think I can help you with this

the acceleration is the change in the speed, in a given time. it can be calculated

$acceleration(a) =\frac{speed_{f} -speed_{i} }{time}$

Step 1

let

$\\speed_{f}=100\ \frac{m}{s} \\speed_{i}=90\ \frac{m}{s} \\time=10\ seconds$

put the values into the equation

$acceleration(a) =\frac{100\ \frac{m}{s} -90\ \frac{m}{s} }{10\ sec}\\\\acceleration(a)=\frac{10 \frac{m}{s} }{10\ seconds}\\acceleration(a)=1 \frac{m}{s^{2} }$

Have a nice day