Question

Integrated Classroom Course for Olympiads & Class
SCIE
Choose the correct answer:
in which of the following cases, does a net zero
force act on the object?
(1) A ball rolling on the ground
(2) A car taking a turn
(3) A speeding bus
(4) A bicycle moving straight with constant speed
100 point guys​

Answer 1

D.

option d is the correct answer because if the object is in constant speed that means it has experienced no acceleration and if you put no acceleration or zero acceleration in the formula of f=ma you get f = m×0

Which is zero.

Answer 2

Explanation:

Series combination. When two or more resistances are connected end to end consecutively, they are said to be connected in series combination. The combined resistance of any number of resistances connected in series in equal to the sum of the individual resistances