1. A body is projected vertically at a speed of 40ms-1 a, At what times is it 5m above the ground. b, A second body is projected at an angle of 30° to the horizontal with a speed of 50ms- 2secs later. What is the height of the first body when this new body reaches maximum height? 50ms-1
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the minerals and the kids and a little while longer to see the and then we went out in my head and a little while longer to see the and then we went out with my and friends who have no how long are they going to do that for a bit of a new on mode on what I ordered it for the next
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Radius of sphere=2cm =2/100=0.02 m
Volume of the sphere=4/3
.
r³
=4/3× 22/7×0.02×0.02m³=0.000704/21 m³
Mass of sphere=0.05kg.
Relative density of sphere=density ×10³
=0.05/0.000704\21 ×10
=0.05×21/704×10-6×10³
=1.05×10³/704×10-6
=1.05×10³±6/704=1.05×109/704=1.49×106
Relative density of sphere= 1.49×106 kg/m³
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