300N
600N
1200N
400N
Correct answer is C
F = Ma + mg = 60 x 10 x 60 x 10 = 1200N
As an object is moved close to the focus of a converging lens from infinity its image I. moves cl...
Which of the following is NOT a part of a d.c. electric motor? ...
The inner diameter of a test tube can be measured accurately using a? ...
If the mechanical advantage of a machine is 4. What is its ratio for LOAD to EFFORT? ...
In the formation of sea breeze. wind blows from ...
Which of the following cannot be used to measure the temperature of a substance? ...