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9th Class Science Gravitation and Floatation Question Bank Gravitation IIT JEE Subjective Problems

  • question_answer
    A pebble is thrown vertically upwards from a bridge with an initial velocity of 4.9 m/s. It strikes the water after 2s. Height of the bridge is (a) 19.6 m                            (b) 14.7 m (c) 9.8 m                               (d) 4.9 m

    Answer:

    \[h=ut=4.9\times 2=9.8\text{ }m\]


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