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Mr MusembiBegginer

Asked: September 2, 2020In: Mechanical Physics

Work Done on Horizontal Plane

A girl carries 20 litres in a Jerry can on her head and walks for 200 metres on a horizontal level ground. Explain why the girl does no work (Assume air resistance is negligible).

KipkoechProfessional

Asked: April 24, 2021In: Mechanical Physics

FLOATING AND SINKING

Explain why a piece of solid steel weighing a few grams sinks in water but a ship weighing thousands of kilograms can float.

Kbett

Asked: April 25, 2022In: Mechanical Physics

Machines

Name machine which has velocity ratio less than 1

AdminEnlightened

Asked: September 14, 2020In: Mechanical Physics

Vehicle Moving on High Speed along dusty road

It is observed that a vehicle which has a door at the rear side gathers more dust inside when moving at high speed on a dusty road with the door open than the one which has an open door on ...