[Smythe]

A ball is thrown with an angle of 45 degrees to the horizontal by a person standing on the ground.

The y-component of the velocity of ball in projectile motion is differentiated with respect to time. i.e. dv/dt of the y-component of velocity.

Does this equal -g? (not g)

[Morbert]

Originally Posted by Smythe

A ball is thrown with an angle of 45 degrees to the horizontal by a person standing on the ground.

The y-component of the velocity of ball in projectile motion is differentiated with respect to time. i.e. dv/dt of the y-component of velocity.

Does this equal -g? (not g)

dv/dt = -g

provided you are using the convention of up = +, down = -