Answer
$33.2Kg$
Work Step by Step
We can find the mass of the hockey player as follows:
$m_p=\frac{m_hv_h}{v_p}$
We plug in the known values to obtain:
$m_p=\frac{-(1.3Kg)(6.5m/s)cos11^{\circ}}{-0.25m/s}$
$m_p=33.2Kg$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.