An object is fired from the ground with a velocity of 500 m/s at 30 to the horizontal. Calculate
a) the horizontal range;
b) the greatest height it reaches;
c) the time taken to rise to the greatest height.
thanks in advance
You can use the general formulas for max height and range.
max height: $\displaystyle \frac{(v_{0}sin(\alpha))^{2}}{2g}$
Range: $\displaystyle \frac{(v_{0}^{2}sin(2\alpha))}{g}$
$\displaystyle v_{0}=500, \;\ {\alpha}=30, \;\ g=9.8$