A body is initially at rest. It undergoes one-dimensional motion with constant acceleration. The power delivered to it at time t is proportional to
(i) t½ (ii) t (iii) t3/2 (iv) t2
(ii) t
Mass of the body = m
Acceleration of the body = a
Using Newton's second law of motion, the force experienced by the body is given by the equation:
F = ma
Both m and a are constants.Hence, force F will also be a constant.
F = ma = Constant … (i)
For velocity v, acceleration is given as,
a = dv / dt = constant
dv = Constant x dt
v = αt ....... (ii)
where α is another constant
Power is given by the relation:
P = F.v
Using equations (i) and (iii), we have:
P ∝ t
Hence, power is directly proportional to time.
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
Welcome to the NCERT Solutions for Class 11 Physics - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 9: A body is initially at rest. It undergoes one-dimensional motion with constant acceleration. The pow....
Comments