A particle starting from rest moves in a straight line with acceleration as shown in the a-t graph. Find the distance traveled by the particle in the first four seconds from the start of its motion?
Soumendu Majumdar , 5 Years ago
Grade 12th pass
2 Answers
Srujith
Last Activity: 5 Years ago
From the graph we can get equation using y-y1=m(x-x1)=>a-0=-1(t-1),∫adt=v,∫vdt=s
V=∫(-t+1)dt=t^2/2+t=>s=-t^3/6+t^2/2 substituting t=4 will give you s as 0.33
Soumendu Majumdar
Last Activity: 5 Years ago
Hello Srujith,
Your equations are perfectly correct but the required quantity is distance and not displacement so the answer is given as 4 m and not 0.33 m. Please post another answer on how to calculate the distance!
Thanks!
regards,
Soumendu Majumdar
Provide a better Answer & Earn Cool Goodies
Enter text here...
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Ask a Doubt
Get your questions answered by the expert for free