Can you answer both graph questions from w.e and kinematics only give correct option?
Asked by vikrammalikviku
2nd January 2018,
12:56 PM
Answered by Expert
Answer:
Force Time Graph Solution
Question : 28 From the image
From 0 to 3 seconds
Power = fv = 1 x 2 = 2 watt
From 3 to 5 seconds
a= (v-u)/t = (0-2)/2
= -1 m/s2
|F|=ma= 2x-1 =2 N
S= ut+ (1/2) at2
= 2x2 -(1/2) x1x22
= 2 m
Power = (Fs)/t= (2 x 2) /2 = 2 watt
Total power = 2+2 = 4 watt
None of these
Answered by Expert
8th January 2018,
12:12 PM
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