Một ôtô khối lượng 3000 kg chuyển động thẳng đều trên đường nằm ngang, VỀ BÊN TRÁI. Biết lực cản lên ôtô bằng 0,3 lần trọng lượng của xe. a/ Kể các lực tác dụng lên ôtô, nêu rõ đặc điểm của từng lực.

b/ Biểu diễn các lực theo tỉ xích 1 cm ứng với 3000N.
giup mik voi

Imagine you work as a consultant, and your daily job involves listening to the constructive criticism of others. as part of your job, you must listen to opposing viewpoints to make important decisions. in this activity, you are a consulting dam engineer. you must make a decision about four different dams; should they be repaired, taken down, or left alone? you will listen to contrasting opinions about what should be done with the dams before you make the final decision. as the consulting dam engineer, what do you decide to do with this dam? explain your reasoning. by making your decision, did you support the opinions of the mayor and/or the dam safety official? why or why not? (site 1)

The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?

Could someone . i have tried to solve myself but my calculation is off