If an iron ball and a wooden ball of same radii are released from a height 'h' in vaccum then time taken to reach ground will be

  • Option 1)

    unequal

  • Option 2)

    equal

  • Option 3)

    roughly equal

  • Option 4)

    zero

 

Answers (1)

As we discussed in Concept

2nd equation or Position- time equation -

s= ut +\frac{1}{2}at^{2}

s\rightarrow Displacement

u\rightarrowInitial velocity

a\rightarrowacceleration

t\rightarrow time

 

-

 

 

 h=ut+\frac{1}{2}gt^{2}

l=\sqrt{\frac{2h}{g}}

Since no other force are meting in vaccum time of decent will be exactly equal


Option 1)

unequal

Option is incorrect

Option 2)

equal

Option is Correct

Option 3)

roughly equal

Option is incorrect

Option 4)

zero

Option is incorrect

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