The radius of the wheel is 40 cm and the radius of the axle is 0.1 min a wheel and axle. If a load of 1200 N is overcome up to 4m by applying an effort of 400 N
calculate efficiency of wheel and axle

Gravity bc it’s gravity

Aform of energy that is reflected or emitted from objects in the form of electrical and magnetic waves that can travel through space. there are many forms of  electromagnetic  energy including gamma rays, x rays, ultraviolet radiation, visible light, infrared radiation, microwaves and radio waves.

Answer ( slope);