Mohak Tandon Asks – “
“Is the acceleration due to gravity different in south pole and north pole?”
As per theory, acceleration due to gravity changes with altitude, depth and latitude.
If we consider that the variation of g with latitude is caused by rotation of earth only, then the value of g will be same for both north pole and south pole.
But, the change in the value of acceleration due to gravity with latitude is caused by the shape of earth too. So it depends your distance from the centre of earth when you are at north pole or south pole.
For calculations the polar radius is taken same at North as well as south pole. So, value of g can be taken the same for both poles.
“The friction coefficient between a road and the tyre of a vehicle is 4/3.find the maximum incline the road may have so that once hard brakes are applied and the wheel starts skidding,the vehicle going down at a speed of 10m/s is stopped within 5m” Raju Rabha asked
Two blocks A and B of mass m1 and m2 respectively are kept in contact on a frictionless table.The experimenter pushes the block A from behind so that the blocks accelerate. If the block A exerts a force F on the block B,what is the force exerted by the experimenter on A.
I just want to know how to easily solve problems related to kinematics and friction. I don’t know why i always face problem in these two topics a lot……
Please help and tell some tricks to solve these both…….
“What is the difference between dot product and cross product?” [The question was posted by Salman)