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A particle is moving eastwards with a velocity of 5m/s. In 10s the velocity changes to 5m/s northwards. Find the average accelration is this time |
Answer» <html><body><p></p>Solution :`veca_(<a href="https://interviewquestions.tuteehub.com/tag/av-888878" style="font-weight:bold;" target="_blank" title="Click to know more about AV">AV</a>) = (vec(<a href="https://interviewquestions.tuteehub.com/tag/deltav-2053504" style="font-weight:bold;" target="_blank" title="Click to know more about DELTAV">DELTAV</a>))/(<a href="https://interviewquestions.tuteehub.com/tag/deltat-2053483" style="font-weight:bold;" target="_blank" title="Click to know more about DELTAT">DELTAT</a>)=(vecv_(f)-vecv_(i))/(Deltat)` <br/> <img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_DOC_OBJ_PHY_XI_V01_A_C04_SLV_013_S01.png" width="80%"/> <br/>`veca_(av)=(5hat(<a href="https://interviewquestions.tuteehub.com/tag/j-520843" style="font-weight:bold;" target="_blank" title="Click to know more about J">J</a>)-5hat(i))/(10)=(5sqrt(2))/(10)=(1)/(sqrt(2))"m/s"^(2)`. North-west direction.</body></html> | |