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A stone projected vertically upward move...

A stone projected vertically upward moves according to the law `s=48t-16t^2`. The time taken by the stone to reach the point of projection is

A

1 sec

B

2 sec

C

3 sec

D

6 sec

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • A stone projected vertically upward moves according to the law s=100t-16t^2 . The acceleration at t=2 sec is

    A
    `-32 unit//sec^2`
    B
    `32 unit//sec^2`
    C
    `16 unit//sec^2`
    D
    `8 unit//sec^2`

  • A stone projected vertically upward moves according to the law s = 100t-16t^2 . The maximum height reached is

    A
    `520//3` unit
    B
    `625//4` unit
    C
    653 unit
    D
    560 unit

  • If A,B,C are the maximum heights reched when three stones projected vertically upwards moves according to the law s= 128t -16t^2,s=48t-16t^2,s=80t-16t^2 respectively then the descending order of A,B,C is

    A
    A,C,B
    B
    C,B,A
    C
    B,A,C
    D
    B,C,A

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