$$ \ frac {m v^2} {r} =μ_sn mg \ cos \ theta $$
$$ \ frac {(1282 \ text {kg}) (25 \ text {m/s})^2} {(60 \ text {m})} =(μ_s) (1282 \ text {kg}) (9.8 \ text {m/s}^2) (\ cos33.7 \ cos33.7 \ cos33.7 \ cos33.
$$ 33333 \ text {n} =(μ_s) (12601 \ text {n}) $$
$$ μ_S =2.65 $$
