Kuis Glb Dan Glbb

Explanation
The correct answer is GLB. GLB stands for Gerak Lurus Beraturan, which translates to Uniform Straight Line Motion. This type of motion refers to an object moving in a straight line with a constant speed and no change in direction. Therefore, the given explanation aligns with the definition of GLB as it describes an object moving in a straight line quickly and without any changes.

Explanation
GLBB stands for Gerak Lurus Beraturan Berubah. It refers to the motion of an object that follows a straight line with a continuously changing velocity. In this type of motion, the object's speed or direction or both can change. This is different from GLB (Gerak Lurus Beraturan) where the object's velocity remains constant. Therefore, GLBB is the correct answer as it accurately describes the motion of an object with a changing velocity along a straight line.

Explanation
The correct answer is "Kereta api yang berjalan lurus." This is because the motion of a train moving in a straight line is an example of linear motion. Linear motion refers to the movement of an object in a straight line with a constant speed. In this case, the train is not changing direction or rotating, but simply moving forward in a straight path.

Explanation
The correct answer is "spedometer". A spedometer is a tool used to measure the speed of a vehicle. It is commonly found in cars and motorcycles and displays the speed in kilometers per hour or miles per hour.

Explanation
The correct answer is 25 m/s2. To determine the deceleration, we need to convert the initial velocity from km/h to m/s. Since 1 km/h is equal to 0.2778 m/s, the initial velocity is 72 km/h * 0.2778 m/s = 20 m/s. The final velocity is 0 m/s since the car comes to a stop. The distance traveled during deceleration is 8 meters. Using the equation v^2 = u^2 + 2as, where v is the final velocity, u is the initial velocity, a is the acceleration, and s is the distance, we can rearrange the equation to solve for acceleration. Plugging in the values, we have 0^2 = 20^2 + 2a(8). Solving for a, we get a = -400/16 = -25 m/s2. Since the acceleration is negative, it indicates deceleration. Therefore, the value of deceleration is 25 m/s2.

Explanation
The height of the tower can be determined using the equation of motion for free fall: h = (1/2)gt^2, where h is the height, g is the acceleration due to gravity (10 m/s^2), and t is the time (2 seconds). Plugging in the given values, we get h = (1/2)(10)(2)^2 = 20 m. Therefore, the height of the tower is 20 m.

Explanation
The correct answer is m/s2. The unit for acceleration in the International System of Units (SI) is meters per second squared (m/s2). This unit represents the change in velocity per unit time and is commonly used to measure the rate at which an object's speed or direction changes. Kilometers per hour (km/h) and meters per second (m/s) are units of speed, while m2/s is not a valid unit for acceleration.

Explanation
The correct answer is 3 km. This is because the question states that the object is moving in a straight line at a constant speed of 25 m/s. To find the displacement, we can use the formula: displacement = speed x time. Given that the time is 2 minutes (or 120 seconds), we can calculate the displacement as 25 m/s x 120 s = 3000 m = 3 km. Therefore, the object has a displacement of 3 km in 2 minutes.

Explanation
Kelajuan adalah perbandingan antara jarak yang ditempuh dengan waktu yang diperlukan untuk menempuh jarak. Dalam fisika, kelajuan sering diukur dalam satuan meter per detik (m/s). Kelajuan menggambarkan seberapa cepat atau lambat suatu benda bergerak dari satu titik ke titik lain dalam waktu tertentu.

Explanation
Lala berjalan ke arah barat sejauh 20 meter, kemudian bergerak kembali ke arah timur sejauh 15 meter. Jarak yang ditempuh Lala adalah 20 meter.