On the mountainous Caribbean islands, sometimes there are landslides during periods of heavy rainfall. During one such landslide, a boulder of mass 170 kg slides down a hill that is inclined at an angle of 22.4" to the horizontal. The coefficients of kinetic friction between the boulder and the hill is 0.24. Find the acceleration of the boulder down the hill. Answer: A newly discovered exoplanet (outside the solar system) has mass 4.0550286019568+24 kg and Radius 2387536.9 m. If a satellite were to be place in orbit, above the surface of the planet. at a height 1.1 times the radius of the planet. find the speed that the satellite must be given. (G = 6.678-11 Nm /kg]) Answer: A 33.7 kg boy is riding his skateboard on the horizontal track with a speed of 14.2 m/s. He comes to a ramp and rides up the ramp without pushing further. What will be his speed when he has attained a vertical height of 1.1 m above the level of the track (ignore friction). Answer:A 1525kg car with the engine turned off is coasting with an initial speed of 15.7 m/s. Find the work that must be done by friction to bring the car to rest. Answer Next page The road at the roundabout with the conch shell has radius 51 m. The coefficient of friction between the tires and the road is 0.59. Find the maximum speed that a car can have to go around the roundabout without skidding. Answer: Finish attempt