Question

In the formula vy = ayt, what is the value of ay for an object in projectile motion?

–9.8 m/s2
0 m/s2
m/s2
1.0 m/s2

Answer 1

–9.8 m/s2

Just took it and got it right!

Answer 2

Answer : The correct option is (A)
`-9.8\ m/s^2`

Explanation :

The formula is given as :

`v_y=a_yt`

Where,

`v_y` is vertical component of velocity.

`a_y` is the vertical component of acceleration.

In a projectile motion, the particle moves in a path under the influence of gravity.

So, the vertical component of acceleration is -g i.e acceleration due to gravity.

Hence, the correct option is (a) "
`a_y=-9.8\ m/s^2` ".