Question

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 1

Answer: (A)

Impulse $=$ Area under $F = t$ curve
(a) $\frac{1}{2} \times 1 \times 0.5=\frac{1}{4} N . s$
(b) $0.5 \times 2=1$ N.s (maximum)
(c) $\frac{1}{2} \times 1 \times 0.75=\frac{3}{8} N . s$
(d) $\frac{1}{2} \times 2 \times 0.5=\frac{1}{2}$ N.s