Problem 3: When = 10 , the crate has a speed of 20 /
which is increasing at 6 /
2
. Determine the direction of (i.e. the
angle of ) the crate’s velocity and the magnitude of the crate’s
acceleration at this instant. Also find the horizontal components of
velocity and acceleration at this instant (by projecting the velocity
and acceleration vectors along the -axis).

I am interested in how to find the horizontal component of the acceleration specifically. Thanks!