## Submitted Questions

• #### Gravitational Constant

The value of gravitational constant below see level at 4500m depth was found to be 9.8295m/s2 and this is maximum after that it decreases...What would be the value of the acceleration due to gravitation at the center of earth?

#### praful.gulhane

• Jun 30th, 2010

Value of Gravitational Constant decreases as going to deep.

#### saurav_sammy

• Jun 20th, 2010

the gravitation constant again decreases as we go down the 4500m level below the sea level....

• #### Maximum Torque Produced

What is the meaning of maximum torque produced at a specified RPM?

#### sandeepfunky

• Jul 2nd, 2010

Torque can be defined as the energy used to rotate the body on its own axis. RPM is revolutions per minute. so the maximum torque attained in a particular RPM is the amount of  force obtained to rotate a body  attached to a fixed point.

• #### Bike Gear

While riding bike in 5th gear at speed around 70-80 km/hr. suppose by any means the speed decreases such as break, but keeping the gear on 5th. Engine of the bike stops. Why? Explain.

#### theleo

• Sep 4th, 2009

Generally in 1st and 2nd gear bike gives huge torque and less speed. But as we increase gears engine gives speed to maintain or increase speed which already bike have and give less torque. so, whe...

#### vivekzgoal

• Sep 2nd, 2009

Because the engine will not produce a required torque in 5th gear, so power is transmitted from wheel to engine through clutch and gear box and finally it stops the engine.