Physics
A body of mass 5 kg accelerates from 12 m/s to 20 m/s in 4 seconds due to the application of a force on it. Calculate the magnitude of this force (in N).

20
10
80
40

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Physics
A drop of liquid assumes spherical shape because:

Inter molecular forces are weak in liquids
Intermolecular forces are strong in liquids
A sphere has the least surface area for a given volume
A sphere has the largest surface area for a given volume

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