(9%) Problem 9: A spear is launched at ground level with an initial speed of 42 m/s, at an angle of 330 above the horizontal. It strikes a target above the ground 2.5 seconds later. @theexpertta.com - tracking id In accordance with Expert TA's Terms of Service. copying this information to any solutions sharing website is strictly forbidden. Doing so may result in termmation of your Expert TA Account. DA 50% Part (a) What is the horizontal distance, in meters, from where the spear was launched to where it hits the target? Made SA Chary m sin() cos() tan() 7 8 9 HOME cotan() asin() acos() E 4 6 miss atan() acotan() sinh() 2 3 rely ain cosh( ) tanh() cotanh() + 0 END Do per attempt Degrees O Radians detailed view VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Hints: 1% deduction per hint. Hints remaining: 4 Feedback: 2% deduction per feedback. 4 50% Part (b) What is the vertical distance, in meters, from where the spear was launched to where it hits the target?(9%) Problem 8: An object rolls off a tabletop with a horizontal velocity vox = 26 m/s. The table is at a height yo = 1.4 m, above the floor. Use a coordinate system with its origin on the floor directly beneath the point where the object rolls off the table, its horizontal x-axis lying directly beneath the object's trajectory, and its vertical y-axis pointing up. @theexpertta.com - tracking In accordance with Expert TA's Terms of Service. copying this information to any solutions sharing website is strictly forbidden. Doing so may result in termination of your Expert TA Account. 25% Part (a) How long, in seconds, is the object falling before it hits the floor? made Summha sino cos( tan() 7 8 9 HOME cotan( asin( acos( 4 5 6 Sub missions atan( acotan() sinh() 2 3 Attempts emaining. cosh() tanh() cotanh() 0 END (4% per attempt) detailed view O Degrees O Radians VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Hints: 1% deduction per hint. Hints remaining: 2 Feedback: 2% deduction per feedback 4 25% Part (b) What's the horizontal distance, in meters, from the edge of the tabletop to where the object lands? A 25% Part (c) What is the vertical component of velocity, in meters per second, when the object hits the ground? A 25% Part (d) What is the magnitude of the velocity (its speed) when it hits the floor?(9%) Problem 10: An object's position in a given coordinate system is described by the vector r = f i - (3 + 3) j. Assume the object moves without air resistance @theexpertta.com - tracking ic In accordance with Expert TA's Terms of Service. copying this information to any solutions sharing website is strictly forbidden. Doing so may result in termination of your Expert TA Account. A 25% Part (a) What is the object's displacement between times t/ = 1 s and to = 3 s? Write your answer in component form. Grade Summary Ar = Deductions Potential Late Work % 7 8 9 HOME Late Potential b 4 Submissions h 3 Attempts remain P + 0 END (4% per attempt detailed view W NO BACKSPACE DEL CLEAR Feedback I give up! Hints: 0 for a 0% deduction. Hints remaining: 0 Feedback: 2% deduction per feedback 4 25% Part (b) What is the object's velocity at 3 = 2 seconds? Write your answer in component form. A 25% Part (c) What is the object's acceleration at t4 = 5 seconds? Write your answer in component form. A 25% Part (d) What is the magnitude of the object's average velocity between t = 1 s and to = 3 s