1.

A body of mass 2 gm is projected horizontally from the top of tower of height 20m with a velocity 10 m/s. The charge on the body is 2C. Electric field is applied vertically downwards and of intensity 10-N/C. Find the time taken by the body to touch the ground (g = 10 m/s^2)

Answer»

`1 SEC `
`1.414 ` sec
` 2.828`sec
`2 sec `

ANSWER :B


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