Can anyone help with these 2?(adsbygoogle = window.adsbygoogle || []).push({});

I cant seem to figure out how to get the answer of 2.8m for this ...

IF you throw a ball at an initial velocity of 26 m/s at an angle of 20 above the horizontal, how high above the projection point is the ball after 2.8 s?

and also

You drag a crat weighing 311 N across a floor by pulling on a rope attatched to the crate. You exert a force of 450N on the rope inclined at 38 degrees, and the floor exerts a horizontal force of 125 N, the acceleration is ....

(do you add the forces, for total force? what do you do with the 38 degrees ?)

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# Homework Help: Projectiles - how high is the ball

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