Pertanyaan
20.Nina mendorong sepeda motor dalam kondisi mogok dengan gaya 150 N. Gaya gesek antara ban sepeda motor dengan tanah 200 N. Konsep hukum Newton terkait peristiwa yang dilakukan Nina adalah __ a. benda akan berhentikarena mengalami perlambatan b. benda akan m empertahankan kecepatannya c. benda akan mengalami percepatan tertentu jika dikenai gaya d. benda tetap diam karena gaya gesek lebih besar daripada gaya dorong
Solusi
Jawaban
d
Penjelasan
This question refers to Newton's laws of motion, particularly relating to the static frictions and forces acting on an object. When Nina exerts a force of 150 N to push the motorcycle, and the frictional force between the tires of the motorcycle and the ground is 200 N, the motorcycle will not move as the frictional force is larger than the pushing force. According to Newton's first law of motion (also known as the law of inertia), an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. Since the frictional force exceeds the pushing force, there is no unbalanced force to cause motion. Thus, the motorcycle remains stationary. The related concept in this scenario is Newton's first law concerning the tendency of objects to resist changes in their state of motion.