A ceiling of hall 50m high. What is maximum horizontal distance that ball thrown with speed 30m/s can go without hitting ceiling of hall??<

Question

A ceiling of hall 50m high. What is maximum horizontal distance that ball thrown with speed 30m/s can go without hitting ceiling of hall??

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Ella 1 month 2021-10-22T02:14:13+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-10-22T02:16:11+00:00

    Step-by-step explanation:

    H

    max

    =

    g

    μ

    2

    sin

    2

    θ

    =25m

    =

    9.8

    (40)

    2

    ×sin

    2

    θ

    =25m

    sin

    2

    θ =0.153125

    θ=23

    0

    Now, T

    g

    2μsinθ

    =

    9.8

    2×40×0.4

    =3.19sec

    Now, x = μcosθ×T

    =40x cos(23

    0

    ) x 3.19

    x= 117.62 m

    Therefore , maximum horizontal distance is 117.62 metres.

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