A motorcycle of mass 100kg moves round in a circle of rad...
A motorcycle of mass 100kg moves round in a circle of radius 10m with a velocity of 5 ms-1. find the coefficient of friction between the road and the tyres.
25.00
2.50
0.50
0.25
Correct answer is D
F = (mv)2/r = (100 x 5)2 = 250N
R = mg = 100 x 10 - 1000N
coefficient of friction,
µ = (F)/R = (250)/1000 = 0.25
The colours seen on soap bubbles are due to ...
Find the cost of running a 60W lamp for 24 hours. If 1kW hr cost 5 naira ...
What is the escape velocity of a satellite launched from the earth’s surface? (Take g as 10ms-...
Which statement is a correct consequence of the uncertainly principle? ...
The amount of heat needed to raise the temperature of 10kg of copper by 1k is its ...