Physics, asked by komi1, 1 year ago

newtons law question please answer urgent

Attachments:

Divyankasc: heyyy
komi1: a is correct find tension, upper string tension
Divyankasc: what
Divyankasc: 60 ?
Divyankasc: i will add the answer say fast
komi1: t=75÷2 and tension in tension in upper string is 75 Newtons
Divyankasc: how,...I am getting 60
komi1: but
komi1: l am 8th class I don't know, tomorrow I have exam
Divyankasc: see my answer..If any mistake tell...Bcoz i am also confused

Answers

Answered by Divyankasc
0
Please refer to the image.

Hope it helps...!
Attachments:

komi1: ok but wrong one day I will tell answer I have exam tomorrow
Divyankasc: what..?
Divyankasc: gotttt
Divyankasc: wait i m editing it
komi1: ok
Divyankasc: answered ot 75 N
komi1: ok
Divyankasc: right now ??/
Answered by Jahnvi97
0
m = 3kg
M = 5kg

a = (M-m)/(M+m) * g
  = (5-3)/(5+3) * 10
  = (2/8) * 10
  = 2.5 m/s²

Tension in the string attached to the masses
T = mg + ma
  = m(g+a)
  = 3(10+2.5)
  = 37.5N

Tension in the upper string,
T' = 2T = 37.5*2 = 75N

Divyankasc: its for class 8...I am studying like this type of problems in 9
Jahnvi97: this is class 11th course in cbse..I don't know how did the question come to class 8th!!
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