Question
Physics Question on Newtons Laws of Motion
Figures (a), (b), (c) and (d) show variation of force with time The impulse is highest in figure
A
Fig (b)
B
Fig (c)
C
Fig (a)
D
Fig (d)
Answer
Fig (b)
Explanation
Solution
Impulse = Area under F=t curve
(a) 21×1×0.5=41N.s
(b) 0.5×2=1 N.s (maximum)
(c) 21×1×0.75=83N.s
(d) 21×2×0.5=21 N.s