Question

Figure shows the x-t plot of a particle in one-dimensional motion. Two different equal intervals of time are shown. Let $v_{1}$and $v_{2}$be average speed in time intervals 1 and 2 respectively. Then

• A. $v_{1} > v_{2}$
• B. $v_{2} > v_{1}$
• C. $v_{1} = v_{2}$
• D. Data is insufficient

Answer 1

Answer: (A)

$v_{1} > v_{2}$

Answer 2

The average speed in a small interval of time is equal to the slope of x-t graph during that interval. As slope of interval 1 > slope of interval 2

$\therefore v_{1} > v_{2}$