A bomb is dropped from an aircraft travelling horizontal at `150 ms^-1` at a height of 490 m. The horizontally distance travelled by the bomb before it hits the ground is (in metre)

Options

A. 1000
B. 1200
C. 1500
D. 1800

Explanation

Let,`barP=hati +hatj,barQ=hati `
`costheta=(barP.barQ)/(|barP||barQ|)`
`impliescostheta=((hati+hatj).hati)/(|hati+hatj|xx|hati|`
`impliescostheta=1/(sqrt2xxsqrt1)`
`impliescostheta=1/sqrt2=cos45^0`
`:.theta=45^0`.