2.Motion in Straight Line
hard

અચળ પ્રવેગથી ગતિ કરતો કણ $4 \,sec$ માં $24\, m$ અને પછીની $4\, sec$ માં $64\,m$ અંતર કાપતો હોય,તો તેનો શરૂઆતનો વેગ કેટલા.........$m/sec$ હશે?

A

$1$

B

$10$

C

$5$

D

$2 $

Solution

(a) Distance travelled in $4$ sec

$24 = 4u + \frac{1}{2}a \times 16$…(i)

Distance travelled in total $8$ sec

$88 = 8u + \frac{1}{2}a \times 64$…(ii)

After solving (i) and (ii), we get

$u = 1$m/s.

Standard 11
Physics

Similar Questions

Start a Free Trial Now

Confusing about what to choose? Our team will schedule a demo shortly.