a mass A[500g] is placed on a smooth table with a string attached to it.the string goes over a frictionless pulley and is connected to another mass B[200g].At t=0 the mass a is at a distance of 200cm from the end and moving with a speed 50cm/s towards the left . what will be its position and speed at time t=1s
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Answered by
0
Answer:
R.E.F image
M
B
=100gm
m
a
=6m
B
a=
m
a
+m
B
m
B
g
=
7
1
(10)m/s
2
=
7
1000
cm/s
2
μ=−90cm/s
d=100cm
d=Ut+
2
1
at
2
100=−90t+
2
1
7
1000
t
2
t=1.97sec≈2sec
v=μ+at
v=−90+
7
1000
(1.97)
v=191.42cm/sec
Answered by
1
Answer:
Answer:R.E.F image M B =100gmm a =6m B a= m a +m B m B g = 71 (10)m/s 2 = 71000 cm/s 2 μ=−90cm/sd=100cmd=Ut+ 21 at 2 100=−90t+ 21 71000 t 2 t=1.97sec≈2se
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