2. A car of mass 1000 kg is moving along a straight horizontal road. The engine of the car is working at a constant rate of 25 kW. When the speed of the car is vm s-', the resistance to motion has magnitude 10v newtons.(a)Show that, at the instant when v=20, the acceleration...
结果1 题目 3 A car of mass 1000 kg is moving on a road with an accelerat sinof2.0m/s^2 .What is the driving force of the engine if the car experiences a constant resistance of1000 N?D A 500N B 1000N C 2000N D 3000N 相关知识点: 试题来源: 解析 D 反馈 收藏 ...
A car of mass 1,000 kg is driving along a straight road with a speed of 30 m/s. A truck of mass 10,000 kg is heading in the opposite direction with a speed of 20 m/s We call the direction of the car the positive direction. The...
A car of mass 1000 kg moves on a circular track of radius 100 m with a speed of 40 m/s. Calculate the magnitude of its angular momentum relative to the centre of the track. View Solution A body of mass 10 kg moving at a height of 2 m, with uniform speed of 2 m/s. Its total...
01) A car has a mass of 1000 kilograms欢迎来主页挑选精品文档,管理,营销,职责,规划,策划,方案,管理,策划,方案管理,理财,策划方案,英语,GRE,手册,建筑之类,本人集中搜集有关各种各类的宏观经济-企业管理-企业战略-企业文化-人力资源-营销策划-公司理财-物流采购-生产质量-能力素质-成功激励-知识信息-国企改革-...
A100kgcar is moving with a maximum velocity of9m/sacross a circular track of radius 30 m . The maximum force of friction between the road and the car is View Solution The brakes of a car moving at 20 m/s along a horizontal road are suddenly applied and it comes to rest after trave...
a car of mass 1500kg is moving up a straigt road,which is inclined at an angle *to the hrizontal,where sin*=1/14,the resistance to the motion of the car from non-gravitional forces is constant and is modelled as a single constant force magnitude 650N.The car's engine is working ...
5 A car of mass500(kg)is moving at10(m/s). When the driver decides to accelerate, a force of200 acts on the car for12.Answer these questions to find out how fast the car moves after it has accelerated.a Calculate the impulse that makes the car accelerate.b Calculate the momentum o...
5 A car of mass 900kg moves along a straight level road. The power developed by the car is constant and equal to 60kW. The resistance to the motion of the car is constant and equal to 1500N.At time t seconds the velocity of the car is denoted by vms1. Initially the car is at ...
I. A car of mass 1200 kg moves up a straight road. The road is inclined to the horizontal at an angle a where s na=1/(15) . The car is moving up the road with constant speed 10 m s-'and the engine of the car is working at a constant rate of 11 760 watts. The non-gra...