True: Gravity is a non-contact force, A object that is still has balanced forces, A newtown meter is used to measure force, Forces is measured in newtons, False: Air resistance is a non-contact force, A object travelling at a constant speed has unbalanced forces, Forces is measured in kgs, An object that is accelerating is balanced,

Bảng xếp hạng

Phong cách trực quan

Tùy chọn

Chuyển đổi mẫu

Bạn có muốn khôi phục tự động lưu: không?