Question

help me out with this​

Answer 1

Answer:

let's do this this is mathematics question

Answer 2

we have the formula of speed  

∴speed = rate of change of distance/ time taken

so for finding distance we have to find area under speed-time graph

distance between t=30min and t=40min = 10*15 = 150km

distance between t=10min aqnd t=40min = 30*15 = 450km

speed is constant and that is 15km/min

if the displacement is equal to distance than the magnitude of averagge velocity of an object is equal to average speed.

hope it is helpful...............................