While calculating the vertical component of velocity in a projectile at a given instant, what would be the sign of g(acceleration due to gravity)? Is it negative in the first half of the projectile and positive in the next half???? I guess it must be because the gradual decrease and later increase in the velocity of the projectile............
While calculating the vertical component of velocity in a projectile at a given instant, what would be the sign of g(acceleration due to gravity)? Is it negative in the first half of the projectile and positive in the next half???? I guess it must be because the gradual decrease and later increase in the velocity of the projectile............