Saved Bookmarks
| 1. |
2. A ball of mass 0.2 kg is thrown vertically upwards byapplying a force by hand. If the hand moves 0.2 mwhile applying a force and the ball goes upto 2 mheight further find, the magnitude of the force.Consider g 10 m/s2 |
|
Answer» Fs = mgh Here h will be the sum total of distance of hand and the original distance as here both KE and PE will work, Here h=2+0.2=2.2 So, F = mgh/s F=0.2×10×2.2/0.2 F=10×2.2 F=22N |
|