Question

An object covers equal distance in equal intervals of time. The speed of an object is 25 km/hr in 30
minutes. Calculate the value of acceleration in m/s2

Plz hep fast

Answer 1

Answer:

The acceleration is 0.003858 m/s².

Explanation:

Speed = 25 km/hr                       (Given)

Time = 30 minutes                      (Given)

        = $\frac{30}{60}$ hr

        = $\frac{1}{2}$ hr

We know that acceleration = $\frac{velocity}{time}$  

                     =>  acceleration = $\frac{25}{\frac{1}{2} }$

                                                 = $\frac{25*2}{1}$

                                                 = 50 km/hr²

But we need to calculate the acceleration in m/s².

Therefore converting km/hr² to m/s².

=> $\frac{1000}{60*60*60*60}$ = $\frac{1}{12960}$

Converting 50 km/hr² in  m/s².

=> 50*$\frac{1}{12960}$

=>  $\frac{5}{1296}$

=> 0.003858 m/s².