Question

Two particles having maximum speed 1 km/s and 2 km/s are projected in all directions possible from the same point on the ground. Find the ratio of the maximum areas covered by the first to that of the second

Answer 1

Answer:

R=

g

u

2

sin2θ

A=πR

2

A∝R

2

A∝u

4

A

2

A

1

=

u

2

4

u

1

4

=[

2

1

]

4

=

16

1

.