Starting from A, Seema moves along a rectangular path ABCD as shown in figure below. She takes 2 min to travel each side. Plot a distance-time graph and explain whether the motion is uniform or non-uniform
Answers
Answer:
She takes 2 minutes to travel each side. Plot a distance-time graph and explain whether the motion is uniform or non-uniform. Answer: Since the distance covered per unit time for the entire distance covered is not the same, the motion is non-uniform.
Answer: x-axis represents time in minutes and y-axis represent distance in the meter.
Paheli starts from position A and go to point B in 2 min so distance cover is 8 m.We mark point 2 min on axis and point on y-axis then we draw a line passing to pt parallel to the y-axis and one more line passing to pt C parallel to the x-axis. Where the two-line interest will be marked as pt. Join the pt and pt. This line represents a graph of one side
Similarly, we do for all the side.
Speed of Paheli will moving alongside AB is (distance/time) = 8/2m/min = 4 m/min
Here the unit is meter/minute.
Speed along side BC is = 6/2 = 3 m/min
Speed alongside CD is = 8/2= 4 m/min
Speed along side DA is = 6/2= 3 m/min
So, we find that Paheli speed is not the same in the whole journey.
Motion is nonuniform.
Nonuniform can also be found from the distance-time graph, here line is not straight so it is non-uniform motion.