Home /
Expert Answers /
Physics /
2-an-object-with-mass-m-3-mathrm-kg-is-sliding-over-a-roller-coaste-pa911

???????

2. An object with mass \( m=3 \mathrm{~kg} \) is sliding over a roller coaster without friction, starting on the left at \( h_{1} \) and sliding to the right to \( h_{4} \), as illustrated in the picture. Gravity is pointing downwards. The heights at the extrema are given by \[ h_{1}=7 \mathrm{~m}, \quad h_{2}=3 \mathrm{~m}, \quad h_{3}=5 \mathrm{~m}, \quad h_{4}=1 \mathrm{~m} \] The initial speed of the object is \( v=1.81 \mathrm{~m} / \mathrm{s} \). Compute the final speed when the object reaches the end of the roller coaster. [4 marks]

Hello, conservation to conservation of energy , total energy at h1is poten