Practice Newtonian Mechanics - CSIR-UGC NET Offered by Unacademy

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Newtonian Mechanics

Quick practice

Question 1 of 5

A constant force F is applied to a relativistic particle of rest mass m. If the particle starts from rest at t = 0, its speed after a time t is -

A

$\frac{F t c}{\sqrt{m^{2} c^{2}+F^{2} t^{2}}}$

B

$c\left(I-e^{-\frac{F t}{m c}}\right)$

C

$c \tan h\left(\frac{F t}{m}\right)$

D

$\frac{F t}{m}$