Question

c) Velocity of the body
d) both mass and velocity of the body
24. Range of a projectile on a horizontal plane is same for the following pair of angles:
a) 30°and 60°
b) 20°and 80°
c) 0°and 45°
d) 10°and 90°​

Answer 1

Answer:

ANSWER

Let u be the equal speed of all four bodies.

Range, R=

g

u

2

sin2θ

Range of A, R

1

=

g

u

2

sin30

o

=

2g

u

2

Range of B, R

2

=

g

u

2

sin60

o

=

2g

3

u

2

Range of C, R

3

=

g

u

2

sin90

o

=

g

u

2

Range of D, R

4

=

g

u

2

sin120

o

=

2g

3

u

2

Hence, option (A) is correct.