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If a car which is at rest suddenly accelerates at 24km/hr. after travelling for 6 hrs. What will be its final velocity |
Answer» <html><body><p>tion:Speed of car for first 30 minutes = 30 km h^{-<a href="https://interviewquestions.tuteehub.com/tag/1-256655" style="font-weight:bold;" target="_blank" title="Click to know more about 1">1</a>}h−1Speed of car for <a href="https://interviewquestions.tuteehub.com/tag/next-578185" style="font-weight:bold;" target="_blank" title="Click to know more about NEXT">NEXT</a> 1 hour = 40 km h^{-1}h−1(a) total distance travelled by the carFirst caseSpeed = distance / timedistance = speed x time= 30 x 0.5 ---- (30 <a href="https://interviewquestions.tuteehub.com/tag/min-548008" style="font-weight:bold;" target="_blank" title="Click to know more about MIN">MIN</a> = 0.5 hour)= 15 km ---- (i)Second casespeed = 40 km h^{-1}h−1distance = 40 km x 1= 40 km ---- (<a href="https://interviewquestions.tuteehub.com/tag/ii-1036832" style="font-weight:bold;" target="_blank" title="Click to know more about II">II</a>)<a href="https://interviewquestions.tuteehub.com/tag/adding-2399902" style="font-weight:bold;" target="_blank" title="Click to know more about ADDING">ADDING</a> (i) and (ii)Total distance = 15 km + 40 km= 55 km(b) total time of travel = 0.5 hr + 1.0 hr = 1.5 hr(c) average speed = total distance travelled/total time taken= 5.5 km/ 1.5 hr= 36.67 km h^{-1}h−1</p></body></html> | |