Question

A graph given, shows the variation of velocity and time of two bodies A and B. Choose an alternative for
their average velocities
А
A) Average velocities of both are same since they have same initial and final velocities
B) Average velocities of both are same since both cover equal distance in equal interval of time
C) Nothing can be said since their accelerations are not given
D) Average velocity of A is greater than that of B since it covers more distance than B in 10 sec​

Answer 1

Answer:

D

Explanation:

Answer 2

Answer:

The correct option is D.

Explanation:

• The area under graph A is greater than that under graph B
• The area under the graph of velocity and time is equal to the displacement of the object
• Thus the displacement covered by A is greater than that covered by B
• In the same period of time, A covers more distance than B
• Therefore, the average velocity of A is greater than that of B
• Velocity is the value of displacement per unit time.
• The average velocities of A and B are different
• A has greater acceleration than B as the slope of A is steeper than that of B.

The average velocity of A is greater than B.

#SPJ3