Slider Slid er blo block ck A mo move ve to to the the left left wit with h a cons constan tantt velo veloci city ty of 6 m/s. Determine the ve velocity of bl block b, b, thee ve th velo loci city ty of po port rtio ion n D of th thee ca cabl ble. e. thee rel th relat ativ ivee vel veloc ocit ity y of of por porti tion on C of of the the ca cabl blee wit with h respect to portion D. [Ans.(a) 2 m/s ↑, (b) 2 m/s ↓, (c) 8 m/s ↑ ] System is sho System shown wn in the the figu figure re and and man is pull pulling ing the rop ropee from from both both sides with constant speed s peed ‘u’. Then the velocity of the block will be (A*)
Q.9
DPP. NO.-27-28
3u 4
(B)
3u
(C)
2
(D) None
(B) 1 m/s (D) 4 m/s
In the the figure figure show shown, n, the the speed speed of the truck truck is v to the righ right. t. The The speed with which the block is moving up at θ = 60° is : (A) v
Q.11
4
System is show System shown n in fig figure ure and wed wedge ge is is movin moving g towar towards ds left left with with spe speed ed 2 m/s. Then velocity of the block bloc k B will be (A) 3 m/s (C*) 2 m/s
Q.10
u
(B) 2v 3
(C*) 3v 4
(D) none
Determine the Determine the relatio relationshi nship p that that govern governss the velo velocity city of four four cylind cylinder er veelocities as positive down. v [Ans: 4vA + 8vB + 4vC + vD = 0]
Q.13
For the the system system shown, shown, calcu calculate late veloci velocity ty and accel accelerati eration on of C.Th C.Thee velocity velocity and acclerations of A and B with respect to ground are marked. [Ans: Vc = 4m/s↓, aC = 5m/s2↓]
Q.14
If the string stringss is inextensi inextensible, ble, determin determinee the velocity velocity u of each block block in in terms terms of v and θ.
(i) Fig. (A) u = _________. (ii) Fig. (B) u = _________.
