Question

 

The horizontal distance x and the vertical height y of a projectile at a time tare given by

                       

Where ab and c are constants. What is the magnitude of the velocity of the projectile 1 second after it is fired?

Solution

Correct option is

 

The horizontal component of velocity is 

                   

The vertical component of velocity is  

                   

The value of vy at t = 1 s is (2b + c). Therefore, the magnitude of velocity at t = 1 s is  

                   

SIMILAR QUESTIONS