The question asks for the normal force exerted on a box by the floor when a horizontal force is applied. The normal force is the force exerted by a surface to support the weight of an object resting on it. In this scenario, assuming there is no vertical acceleration and the box is on a horizontal surface, the normal force is equal to the weight of the box due to gravity. This can be calculated using the equation N = m × g, where m is the mass of the box and g is the acceleration due to gravity (9.80 m/s²). Therefore, the normal force for a 50 kg box would be N = 50 kg × 9.80 m/s² = 490 N. The horizontal force of 180 N does not affect the normal force if there's no vertical movement.
The normal force exerted on a 50 kg box by the floor is 490 N, calculated by the formula for weight: W = m × g, where g = 9.8 m/s². The horizontal force of 180 N does not affect the normal force as there is no vertical movement. Therefore, the normal force remains equal to the weight of the box.
;
Jawaban:-Penjelasan:6. B. Memimpin diri sendiri.7. A. Permintaan.8. A. Bila harga turun, jumlah yang ditawarkan bertambah.