Question

A ball is thrown vertically upward with speed 60 m/sec distance travelled by particle in time interval t = 0 sec to t = 8 sec is​

Answer 1

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Correct option is B - 175m

175mHere, we have to use equation of motion

175mHere, we have to use equation of motionHere, we taken upward direction as +ve y axis

175mHere, we have to use equation of motionHere, we taken upward direction as +ve y axiss : distance travelled

175mHere, we have to use equation of motionHere, we taken upward direction as +ve y axiss : distance travelledu : initial velocity

175mHere, we have to use equation of motionHere, we taken upward direction as +ve y axiss : distance travelledu : initial velocityt : time

175mHere, we have to use equation of motionHere, we taken upward direction as +ve y axiss : distance travelledu : initial velocityt : times=ut−21gt2 

175mHere, we have to use equation of motionHere, we taken upward direction as +ve y axiss : distance travelledu : initial velocityt : times=ut−21gt2 s=60×7−21×10×72=420−245=175 m

Answer 2

Here, we have to use equation of motion

Here, we taken upward direction as +ve y axis

s : distance travelled

u : initial velocity

t : time

s = ut - 1

--- gt²

2

s = 60 × 8 - 1 × 10 × 8²

---

2

= 160

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