A Car Tavels 125km fromschool to home for 2hours. find the speed of the car in km/h and m/s?

Explanation:

Given parameters:

Distance  = 125km

Time taken  = 2hrs

Unknown:

Speed of the car  in km/hr and m/s  = ?

Solution:

Speed is the distance divided by the time taken;

 Speed  =  

So;

 Speed  =    = 62.5km/hr

Now in m/s;

             1000m = 1km

              3600s  = 1hr

So;

      62.5 x km x  x x    = 17.36m/s

260 miles per hour

explanation:

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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