A cart is moving horizontally along a staight line with a constant speed 30 m/s. A bullet is to be fired vertically upwards from the moving cart in such a way that it returns to the cart at the same point from where it was fired, after the cart has moved 80 m. At what speed (relative to the cart), the bullet must be fired ? Take g=10 m/s2.

A cart is moving horizontally along a staight line with a constant spe

1.	A cart is moving horizontally along a staight line with a constant speed 30 m/s. A bullet is to be fired vertically upwards from the moving cart in such a way that it returns to the cart at the same point from where it was fired, after the cart has moved 80 m. At what speed (relative to the cart), the bullet must be fired ? Take g=10 m/s2.
Answer» A cart is moving horizontally along a staight line with a constant speed $30 m/s$ . A bullet is to be fired vertically upwards from the moving cart in such a way that it returns to the cart at the same point from where it was fired, after the cart has moved $80 m$ . At what speed (relative to the cart), the bullet must be fired ? Take $g = 10 {m/s}^{2}$ .

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