Question 184: Motion in 2D & Vectors

Question

A missile is fired for maximum  range with an initial velocity of 20 m/s. If g = 10 m/s2, the range of the missile is

Accepted Answer

For maximum range, the angle of projection,
$$	heta $$ = 45ÃÂ°.
$$ 	herefore R = {{{u^2}\sin 2	heta } \over g}$$
$$ = {{{{\left( {20} ight)}^2}\sin \left( {2 	imes {{45}^\circ }} ight)} \over {10}}$$
$$ = {{400 	imes 1} \over {10}} = 40\,m$$

Answer

40 m

Answer

50 m

Answer

60 m

Answer

20 m

Motion in 2D & Vectors

A missile is fired for maximum range with an initial velocity of 20 m/s. If g = 10 m/s2, the range of the missile is

Choose the correct answer: