Question

Give reasons for :-

i. The steering wheel of a vehicle is of large diameter

ii. A tall building has a wide foundation

iii. A sharp pin works better than a blunt one​

Answer 1

Answer:

The steering wheel of a vehicle is of large diameter because to hold it more comfortably

A tall building has a wide foundation because to hold that buildings weight and not falll

A sharp pin works better than a blunt one because it has less surface area

Answer 2

Answer:

1-The steering wheel of a vehicle is of large diameter. The reason is that larger the diameter larger the perpendicular distance from the pivoted point. This increases the moment of force in the steering wheel.

2-The foundations of high rise building are kept wide so that they exert less pressure on the ground and prevent the building from sinking into the ground.

3-A sharp tip is provided at the end of a pin so that pressure (FORCE/AREA) exerted by it is maximum when it is pressed by a given force.