bạn tham khảo bài này chỉ có thay vận tốc và lực cản không khí  ( tham khảo câu b và c ) https://hoc24.vn/hoi-dap/tim-kiem?q=T%E1%BB%AB+%C4%91%E1%BB%99+cao+5+m+so+v%E1%BB%9Bi+m%E1%BA%B7t+%C4%91%E1%BA%A5t,+m%E1%BB%99t+v%E1%BA%ADt+kh%E1%BB%91i+l%C6%B0%E1%BB%A3ng+m=800g+%C4%91%C6%B0%E1%BB%A3c+n%C3%A9m+l%C3%AAn+cao+theo+ph%C6%B0%C6%A1ng+th%E1%BA%B3ng+%C4%91%E1%BB%A9ng+v%E1%BB%9Bi+v%E1%BA%ADn+t%E1%BB%91c+6m/s.+B%E1%BB%8F+qua+s%E1%BB%A9c+c%E1%BA%A3n+c%E1%BB%A7a+kh%C3%B4ng+kh%C3%AD+v%C3%A0+l%E1%BA%A5y+g=10m/s2.+Ch%E1%BB%8Dn+g%E1%BB%91c+th%E1%BA%BF+n%C4%83ng+t%E1%BA%A1i+m%E1%BA%B7t+%C4%91%E1%BA%A5t.++a)+T%C3%ADnh+W%C4%91,+Wt,W+c%E1%BB%A7a+v%E1%BA%ADt+t%E1%BA%A1i+v%E1%BB%8B+tr%C3%AD+n%C3%A9m++b)+T%C3%ADnh+v%E1%BA%ADn+t%E1%BB%91c+c%E1%BB%A7a+v%E1%BA%ADt+t%E1%BA%A1i+th%E1%BB%9Di+%C4%91i%E1%BB%83m+v%E1%BA%ADt+c%C3%B3+%C4%91%E1%BB%99ng+n%C4%83ng+b%E1%BA%B1ng+hai+l%E1%BA%A7n+th%E1%BA%BF+n%C4%83ng++c)+N%E1%BA%BFu+l%E1%BB%B1c+c%E1%BA%A3n+kh%C3%B4ng+kh%C3%AD+b%E1%BA%B1ng+0,1N+t%C3%ACm+%C4%91%E1%BB%99+cao+c%E1%BB%B1c+%C4%91%E1%BA%A1i+m%C3%A0+h%C3%B2n+bi+%C4%91%E1%BA%A1t+%C4%91%C6%B0%E1%BB%A3c&id=270184