A body of mass 20g projected vertically upwards in vacuum...
A body of mass 20g projected vertically upwards in vacuum returns to the point of projection after 1.2s. [g = 10ms−2]. Calculate the speed of projection
1.2ms-1
6.0ms-1
12.0ms-1
0.6ms-1
Correct answer is C
V = u - gt
u = v + gt
= 0 + 10 x 1.2
= 12ms−1
An electric charge could be transmitted through ...
Which of the following ammeters may be used to measure alternating currents? i. moving-coil ammet...
The small droplet of water that forms on the grass in the early hours of the morning is ...
Of the following, which is different from the others? ...
An air bubble of volume 2 cm3 is formed 20m under water. What will be its volume when it r...