यदि आपके किसी मित्र को अपने पिताजी के पैसो का घमंड हो यदि आपके किसी मित्र को अपने पिताजी के पैसों पर घमंड हो तो आप उसे कैसे समझाएंगे विचार करके लिखें
Answers
Answer:
The current velocity of a river grows in proportion to the distance from its bank and reaches the maximum value v in the middle. Near the banks the velocity is zero. A boat is moving along the river in such a manner that it is always perpendicular to current and the speed of the boat in still water is u. If the width of river is , the distance through which the boat crossing the river will be carried away by the current is lwo then the value of b is:
Answer❣
Question :
An object travels 20m in 4s and then other 20m in 10s . What is the average speed of the object ?
Solution :
As per the question we have two cases so let's assume each as Case 1 and Case 2 respectively !
Case 1 :
Distance Covered : 20m
Time taken : 4 sec
Speed : Distance / time
: 20 / 4
: 5 m / sec
Case 2 :
Distance Covered : 20 m
Time taken : 10 sec
Speed : Distance / time
: 20 / 10
: 2 m / sec
huge average speed = total distance total time
averagespeed=totaltimetotaldistance
= \5 + 2 4 + 10=4+105+2
= 7 40 = 0.175=407=0.175
Hence , the average speed of the object is 0.175 m / sec !!