Speed - The distance that is travelled over time., Velocity - Speed and direction of motion., Acceleration - The change of speed over time., Tides - They exist due to the moon and oceans., Gravity - Natural force of attraction between two objects.,

लीडरबोर्ड

दृश्य शैली

विकल्प

टेम्पलेट स्विच करें

ऑटो-सेव पुनःस्थापित करें: ?