A. 109.5 mm from A
B. 119.5 mm from A
C. 125.5 mm from A
D. 132.5 mm from A
Related Mcqs:
- A ladder of weight ‘w’ rests against a smooth vertical wall, and rests on rough horizontal ground, the coefficient of friction between the ladder and the ground being 1/4. The maximum angle of inclination of the ladder to the vertical, if a man of weight ‘w’ is to walk to the top of it safely, is tan’1 x, where x is___________________?
A. 1/4
B. 1/3
C. 3
D. 4 - A cable loaded with 10 kN/m of span is stretched between supports in the same horizontal line 100 m apart. If the central dip is 10 m, then the maximum and minimum pull in the cable respectively are____________________?
A. 1346.3 kN and 1500 kN
B. 1436.2 kN and 1250 kN
C. 1346.3 kN and 1250 kN
D. 1436.2 kN and 1500 kN - A shell travelling with a horizontal velocity of 100 m/sec explodes and splits into two parts, one of mass 10 kg and the other of 15 kg. The 15 kg mass drops vertically downward with initial velocity of 100 m/sec and the 10 kg mass begins to travel at an angle to the horizontal of tan”1 x, where x is______________________?
A. 3/4
B. 4/5
C. 5/3
D. 3/5 - In a lifting machine a weight of 5 kN is lifted through 200 mm by an effort of 0.1 kN moving through 15 m. The mechanical advantage and velocity ratio of the machine are respectively_____________________?
A. 50 and 75
B. 75 and 50
C. 75 and 75
D. 50 and 50 - Two circular discs of same weight and thickness are made from metals having different densities. Which disc will have the larger rotational inertia about its central axis ?
A. disc with larger density
B. disc with smaller density
C. both discs will have same rotational inertia
D. none of the above - When a circular wheel rolls on a straight track, then the shape of body centrode and space centrode respectively are________________?
A. straight line and parabola
B. straight line and circle
C. circle and straight line
D. circle and parabola - Two balls of masses 3 kg and 6 kg are moving with velocities of 4 m/sec and 1 m/sec respectively, towards each other along the line of their centers. After impact the 3 kg ball comes to rest. This can happen only if the coefficient of restitution between the balls is____________________?
A. 2/3
B. 1/5
C. 3/5
D. 1/3 - Time period and length of a seconds pendulum respectively are_________________?
A. 1 sec and 99.4 cm
B. 1 sec and 92.7 cm
C. 2 sec and 99.4 cm
D. 2 sec and 92.7 cm - The angles between two forces to make their resultant a minimum and a maximum respectively are__________________?
A. 0° and 90°
B. 180° and 90°
C. 90° and 180°
D. 180° and 0° - A shell of mass 100 kg travelling with a velocity of 10 m/sec breaks into two equal pieces during an explosion which provides an extra kinetic energy of 20000 Joules. If the pieces continue to move in the same direction as before, then the speed of the faster one must be____________________?
A. 20 m/sec
B. 30 m/sec
C. 40 m/sec
D. 50 m/sec
