The question of minimum time and minimum distance in crossing a river.

A man crosses a river in a boat if he crosses the river in minimum time he take 10min with a drift 120metre if he crosses the river taking shortest path he takes 12.5min find the width of the river Incoming search terms:crossing a river in shortest distance and timecrossing the river in minimum timephysics [...]

Can you answer this questions from units and dimensions

“Find the value of 60 joule per minute on a system which has 10cm, 100gm and 1 minute as fundamental units.” Post your answer as comments. You can also upload a file using the contact page or ask a question page. Incoming search terms:questions on units and dimensionsnumericals on units & dimensions in 11 physicsphysics [...]

you are given two nichrome wire of same length and different thickness Which wire will get heated first Give reason.?

You are given two nichrome wire of same length and different thickness Which wire will get heated first Give reason.? Asked Merlin Mary Mathew Answer: If the wires are connected one by one to a source, (or connected in parallel to the same source) the one having less resistance (Greater thickness) will get heated up first. [...]

A body covers a distance of 20 m in 7th sec and 24 m in the 9th sec. How much shall it cover in 15s ?

“A body covers a distance of 20 m in 7th s and 24 m in the 9th s. How much shall it cover in 15s ?”  - Raghav posted this question.   Answer: From the eqn for displacement in the nth second, For the displacement in the 7th sec, we get, …………………….. (1) For the displacement in [...]