1
GATE ME 2015 Set 1
+2
-0.6
For the truss shown in figure, the magnitude of the force in member PR and the support reaction at R are respectively
A
122.47 kN and 50kN
B
70.71 kN and 100 kN
C
70.71 kN and 50 kN
D
81.65 kN and 100 kN
2
GATE ME 2015 Set 1
Numerical
+2
-0
A ball of mass 0.1 kg, initially at rest, is dropped from height of 1m. Ball hits the ground and bounces off the ground. Upon impact with the ground, the velocity reduces by 20%. The height (in m) to which the ball will rise is _______
3
GATE ME 2014 Set 2
Numerical
+2
-0
A truck accelerates up a 10° incline with a crate of 100 kg. Value of static coefficient of friction between the crate and the truck surface is 0.3. The maximum value of acceleration (in m/s2 ) of the truck such that the crate does not slide down is _______
4
GATE ME 2014 Set 1
Numerical
+2
-0
A block weighing 200N is in contact with a level plane whose coefficients of static and kinetic friction are 0.4 and 0.2, respectively. The block is acted upon by a horizontal force (in newton) P=10t, where t denotes the time in seconds. The velocity (in m/s) of the block attained after 10 seconds is _______