Laws of MotionHard
Question
In the figure acceleration of A is 1 m/s2 upwards, acceleration of B is 7 m/s2 upwards and acceleration of C is 2 m / s2 upwards. The acceleration of D will be
Options
A.7 m/s2 downwards
B.2 m/s2 downwards
C.10 m/s2 downwards
D.8 m/s2 downwards
Solution
a1 + a2 = 1
a1 - a2 = 7
a3 - a1 = 2
⇒ a1 = 4,
a2 = - 3,
a3 = 6
Acceleration of D = a1 + a3
= 4 + 6 = 10 ms-2 downwards
a1 - a2 = 7
a3 - a1 = 2
⇒ a1 = 4,
a2 = - 3,
a3 = 6
Acceleration of D = a1 + a3
= 4 + 6 = 10 ms-2 downwards
Create a free account to view solution
View Solution FreeMore Laws of Motion Questions
A plate of mass ′M′ is placed on a horizontal frictionless surface and the body of mass′m′ is pl...Three blocks are connected as shown in fig. on a horizontal frictionless table if m1 = 1 kg, m2 = 8 kg, m3 = 27 kg and T...Inertia of a body has direct dependence on :-...Three blocks A, B and C of masses 4 kg, 2 kg and 1 kg respectively, are in contact on a frictionless surface, as shown. ...A rope lies on a table such that a part of it hangs down the table, when the length of hanging part is 1/3 of entire len...