9th Class Science Work and energy Question Bank 9th CBSE Science Work and energy

  • question_answer
    Sony says that the acceleration in an object could be zero even when several forces are acting on it. Do you agree with her? Why?   

    Answer:

                      Yes, Sony is right because if several forces acting on an object are balanced forces, i.e., their resultant is zero (i.e., ), then there is no acceleration of the object. This may be seen as follows: From Newton's second law,  If  or acceleration, a = 0


You need to login to perform this action.
You will be redirected in 3 sec spinner