Another sprinter is coming out of a starting block, pushing at the instant of interest with just one foot. The sprinter pushes backwards with a horizontal force of 151.2 lbs and downwards with a vertical force of 72.5 lbs. What is the angle the resultant force makes relative to the ground, in degrees?

Another sprinter is coming out of a starting block, pushing at the instant of interest with just one foot. The sprinter pushes backwards with a horizontal force of 151.2 lbs and downwards with a vertical force of 72.5 lbs. What is the angle the resultant force makes relative to the ground, in degrees?