(20%) Problem 1: During an ice show, a 72.5-kg skater leaps into the air and is...
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(20%) Problem 1: During an ice show, a 72.5-kg skater leaps into the air and is caught by an initially stationary 85 kg skater. 50% Part (a) What is their final speed, in meters per second, assuming negligible friction and that the 72.5 kg skater's initial horizontal speed is 3.85 m/s? sin() cos() tan cotan atan asin() acos acotan() sinh() cosh() tanh() cotanh() Degrees Radians () 8 9 HOME 7 EMN4 * 1 5 6 2 3 - Grade Summary Deductions Potential Submissions 2% 98% Attempts remaining: 98 (1% per attempt) detailed view + - 0 END 1 VO BACKSPACE DEL CLEAR 2 1% 1% Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 1 50% Part (b) How much kinetic energy is lost, in joules? Feedback: 0% deduction per feedback. (20%) Problem 3: In an elastic collision, bumper cars 1 and 2 are moving in the same direction when bumper car 1 rear-ends bumper car 2. The initial speed of bumper car 1 is 7.56 m/s and that of bumper car 2 is 4.42 m/s. The bumper cars have the same mass. Take the positive direction to be the direction in which the bumper cars are moving. 50% Part (a) What is the final velocity, in meters per second, of bumper car 1? Ulf = m/s sin() cos() tan cotan asin acos atan acotan cosh() tanh() sinh cotanh() Degrees Radians () 7 8 9 HOME EMN4 5 6 * 1 2 3 + - 0 END VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 1 Feedback: 0% deduction per feedback. 50% Part (b) What is the final velocity, in meters per second, of bumper car 2? Grade Summary Deductions Potential Submissions 0% 100% Attempts remaining: 100 (1% per attempt) detailed view (20%) Problem 1: During an ice show, a 72.5-kg skater leaps into the air and is caught by an initially stationary 85 kg skater. 50% Part (a) What is their final speed, in meters per second, assuming negligible friction and that the 72.5 kg skater's initial horizontal speed is 3.85 m/s? sin() cos() tan cotan atan asin() acos acotan() sinh() cosh() tanh() cotanh() Degrees Radians () 8 9 HOME 7 EMN4 * 1 5 6 2 3 - Grade Summary Deductions Potential Submissions 2% 98% Attempts remaining: 98 (1% per attempt) detailed view + - 0 END 1 VO BACKSPACE DEL CLEAR 2 1% 1% Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 1 50% Part (b) How much kinetic energy is lost, in joules? Feedback: 0% deduction per feedback. (20%) Problem 3: In an elastic collision, bumper cars 1 and 2 are moving in the same direction when bumper car 1 rear-ends bumper car 2. The initial speed of bumper car 1 is 7.56 m/s and that of bumper car 2 is 4.42 m/s. The bumper cars have the same mass. Take the positive direction to be the direction in which the bumper cars are moving. 50% Part (a) What is the final velocity, in meters per second, of bumper car 1? Ulf = m/s sin() cos() tan cotan asin acos atan acotan cosh() tanh() sinh cotanh() Degrees Radians () 7 8 9 HOME EMN4 5 6 * 1 2 3 + - 0 END VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 1 Feedback: 0% deduction per feedback. 50% Part (b) What is the final velocity, in meters per second, of bumper car 2? Grade Summary Deductions Potential Submissions 0% 100% Attempts remaining: 100 (1% per attempt) detailed view
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