need help with this problem. Thank you

theExpertTA.com Student: Class Management | Help 4. 2D Motion Begin Date: 3/12/2022 12:01:00 AM -- Due Date: 4/8/2022 11:59:00 PM End Date: 5/26/2022 11:59:00 PM (9%) Problem S: A student standing on a cliff throws a pebble from a vertical height d = 8.0 m above the level ground with velocity vo = 21.2 m/s at an angle 0 = 17 below the horizontal. It moves without air resistance. Use a Cartesian coordinate system with the origin at the pebble's initial position. VO d 50% Part (a) With what speed, in meters per second, does the stone strike the ground? Grade Summary m/s Deductions 096 Potential 10046 Late Work % 1009% sin() cos( tan() 7 ( ) 7 8 9 Late Potential 100% cotan() asin acos 4 5 6 Submissions atan acotan() sinhC 1 2 3 Attempts remaining. 15 cosh( tanh( cotanh() + 0 (16 per attempt) Degrees O Radians detailed view VO Submit Hint I give up! Hints: 09% deduction per hint. Hints remaining: 6 Feedback: 09% deduction per feedback A 50% Part (b) If the pebble had been thrown from the clifftop with the same initial speed and the same angle, but above the horizontal, then compare their impact velocities All content @ 2023 Expert TA, LLC