tour

Classical Mechanics Level 1

A man on a tour travels first 160 km at 64 km/hr and the next 160 km at 80 km/ hr the average speed of first 320 km is:


The answer is 71.11.

Sai Krishna Yetukuri by Sai Krishna Yetukuri , 25, India

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

1 solution

Total time taken =(160/64+160/8)hrs =9/2 hrs Average speed =(320×2/9)km/hr=71.11 km/hr

0 Helpful 0 Interesting 0 Brilliant 0 Confused

The best way is to do is to use the formula 2xy/x+y.

Anuj Shikarkhane - 6 years, 11 months ago

160./64+160/80=26./9

Sangita Mathur - 6 years, 10 months ago

0 pending reports

×

Problem Loading...

Note Loading...

Set Loading...