Physics equations/07-Work and Energy/Q:cart1/More practice

pe07-Cart1 B
{If the initial velocity after leaving the spring is 2.1 m/s, how high does it reach before coming to rest?} +a) 2.25E-001 m -b) 2.73E-001  m -c) 3.30E-001  m -d) 4.00E-001  m -e) 4.85E-001  m {The mass of the cart is 4.9kg, and the spring constant is 4743N/m. If the initial compression of the spring is 0.7m, how high does it reach before coming to rest? } -a) 1.12E+001  m -b) 1.36E+001  m -c) 1.65E+001  m -d) 2.00E+001  m +e) 2.42E+001  m {What is the highest point the cart reaches if the speed was 7.8m/s when the cart was situated at a height of 2.5m? } -a) 4.7542E+000 m +b) 5.6041E+000  m -c) 6.6059E+000  m -d) 7.7868E+000  m -e) 9.1789E+000  m {If the initial velocity after leaving the spring is 7.9 m/s, how high does it reach before coming to rest?} +a) 3.18E+000  m -b) 3.86E+000  m -c) 4.67E+000  m -d) 5.66E+000  m -e) 6.86E+000  m {The mass of the cart is 4.8kg, and the spring constant is 8459N/m. If the initial compression of the spring is 0.1m, how high does it reach before coming to rest? } -a) 5.06E-001 m -b) 6.13E-001  m -c) 7.42E-001  m +d) 8.99E-001  m -e) 1.09E+000  m {What is the highest point the cart reaches if the speed was 7.2m/s when the cart was situated at a height of 2.4m? } -a) 2.6130E+000  m -b) 3.0801E+000  m -c) 3.6307E+000  m -d) 4.2798E+000  m +e) 5.0449E+000  m