Concepts Of Physics MCQ Edition [Volume 1]PhysicsRest and Motion Kinematics
A ball is projected at a speed of 40 m/s at an angle of 60^ to the horizontal. Determine the range of the ball. Take g = 10 m/s ^2 .
Options
- A160 3 m
- B160 m
- C80 3 m
- D120 m
Correct answer
C. 80 3 m
Step-by-step solution
The horizontal range of a projectile is given by the formula: R = u^2 (2 ) g Substituting the given values u = 40 m/s , = 60^ , and g = 10 m/s ^2 : R = (40)^2 (2 60^ ) 10 R = 1600 (120^ ) 10 Since (120^ ) = 3 2 : R = 160 3 2 = 80 3 m