true or false
If a net force acts on an object, the object's speed will change.
An object's velocity will change if a net force acts on the object.
If two object have the same acceleration, they are under the influence of equal forces.
The net force which acts on an object which remains at rest is zero.
A truck initially moving at a constant velocity will slow down unless a small net force is applied
During the collision of a car with a large truck, the car exerts a lesser force on the truck than the truck exerts on the car.
true or false
If a net force acts on an object, the object's speed will change.
Usually, but not for example if going in a circle.
An object's velocity will change if a net force acts on the object.
Yes, magnitude or direction or both
If two object have the same acceleration, they are under the influence of equal forces.
What if they have different masses?
The net force which acts on an object which remains at rest is zero.
Guess so or it would accelerate.
A truck initially moving at a constant velocity will slow down unless a small net force is applied
In practice yes due to air drag and other frictional forces
During the collision of a car with a large truck, the car exerts a lesser force on the truck than the truck exerts on the car.
The force on one is equal in magnitude and opposite in direction to the force on the other. The resulting accelerations are quite different.
thanks, i got them all except for the first one.
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True or false, you ask? Well, let's see how I can clown around with these statements!
1. If a net force acts on an object, the object's speed will change.
True! If a net force gives someone a really nice push, they might just zoom away like a superhero. Watch out for flying objects!
2. An object's velocity will change if a net force acts on the object.
True! When a net force comes into play, things can get pretty wild. It might make an object change its direction or its speed, like a rollercoaster on a crazy track.
3. If two objects have the same acceleration, they are under the influence of equal forces.
False! Just because two objects have the same acceleration doesn't mean they share the same forces. One of them might have some invisible superhero powers that are responsible for their acceleration!
4. The net force which acts on an object that remains at rest is zero.
True! If it's not moving and there's no force, it's like a sloth taking a nap. No force means no urge to get up and start dancing.
5. A truck initially moving at a constant velocity will slow down unless a small net force is applied.
False! If a truck is already moving at a constant velocity, it's like a cool cat cruising down the street. It's not gonna slow down unless some major forces come into play.
6. During the collision of a car with a large truck, the car exerts a lesser force on the truck than the truck exerts on the car.
False! During a collision, things can get pretty messy. The forces involved can be quite intense, with each object trying its best to make an impression. So, let's just say that the car and the truck might end up being force buddies, each exerting its fair share of power.
Remember, these statements might be true or false, but my aim is to bring a smile to your face either way!
True. If a net force acts on an object, the object's speed will change.
Explanation: This is in line with Newton's second law of motion, which states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Since acceleration is the rate of change of velocity, a change in velocity (speed) will occur if a net force acts on the object.
True. An object's velocity will change if a net force acts on the object.
Explanation: Velocity is a vector quantity that includes both speed and direction. If a net force acts on an object, it can change the object's direction, resulting in a change in velocity.
True. If two objects have the same acceleration, they are under the influence of equal forces.
Explanation: According to Newton's second law, the acceleration of an object is directly proportional to the net force acting on it. If two objects have the same acceleration, it means that they are experiencing the same net force.
True. The net force acting on an object that remains at rest is zero.
Explanation: When an object is at rest, it means that its velocity is zero. According to Newton's first law of motion (the law of inertia), an object at rest tends to stay at rest unless acted upon by an external force. If the object remains at rest, it means that the net force acting on it is zero.
False. A truck initially moving at a constant velocity will not slow down unless a net force is applied.
Explanation: According to Newton's first law, an object in motion tends to stay in motion with the same velocity unless acted upon by an external force. If a truck is moving at a constant velocity, it means that the net force acting on it is zero. Therefore, it will not slow down unless a net force is applied.
False. During a collision between a car and a large truck, the car exerts the same force on the truck as the truck exerts on the car.
Explanation: According to Newton's third law of motion, for every action, there is an equal and opposite reaction. The forces exerted on each other by the car and the truck during the collision are equal in magnitude but opposite in direction. Therefore, the car exerts the same force on the truck as the truck exerts on the car.