Question

a car traveling at 10 km/h speeds up to 40 km/h in 5 seconds . what is its acceleration​

Answer 1

• its acceleration is 2•5meter per second square we can gain it by first converting initial velocity(10km\hr) into m\s by dividing you will get 25/6.then,also convert final velocity(40km/hr) into metre/sec by dividing . you will gain(100/6).so the time is given already in second so you don't need to convert.now,you can find acceleration by using formula (final velocity-initial velocity/time taken).you may be confused but while subtracting the number ,the denominator is same so common is taken which will be multiplied with time. i
• i hope it will help you