In the figure above, the coefficient of static friction i...
In the figure above, the coefficient of static friction is 0.5. If the tension in the string is T, the acceleration of the system in motion is
5 ms-2
15 ms-2
3 ms-2
9 ms-2
Correct answer is A
Normal reaction R = 3 kg x 10 = 30N
coefficient of friction , μ = 0.5
∴ acting frictional force = μR = 30 x 0.5
Pulling/sliding force F = 6kg x 10 = 60N.
∴ Net downward force = ma = 60 - 15.0
=> (3 + 6)a = 45
∴ 9a = 45
a = 5m/s2
Similar Questions
A vapor is said to be saturated when? ...
Which of the following instruments is best for measuring the diameter of a thin constantan wire? ...
Which of the following statements is correct about volatile liquids? They have ...
Which of the following physical qualities affects the saturated vapour pressure of a liquid?...
Which of the following statements about the pressure in a liquid is NOT correct? It ...
Which of the following instruments is not a wind instrument? ...
In the fig above, XY is of length 1m, The value of R at balance point Z is ...