Physics
To move a boat ahead in water, the boatman has to push the water backwards by his oar. Explain.
Related Questions
When two spring balances joined at their free ends, are pulled apart, both show the same reading. Explain.
When you step ashore from a stationary boat, it tends to leave the shore. Explain.
A light ball falling on ground, after striking the ground rises upwards. Explain the reason.
A person pushing a wall hard is liable to fall back. Give reason.