A shell is fired from the ground with an initial speed of 1.60 103 m/s (approximately five times the speed of sound) at an initial angle of 64.0 to...

A shell is fired from the ground with an initialspeed of 1.60 × 103 m/s (approximately fivetimes the speed of sound) at an initial angleof 64.0◦ to the horizontal.The acceleration of gravity is 9.81 m/s2 .a) Neglecting air resistance, find the shell’shorizontal range.b-)how long is the shell in motion?answer in units of sAnswer in units of m.