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A spacecraft orbits Earth at a constant speed.The forces actinbg on it must be?
Wiki User
∙ 14y ago
There is only one force acting on an orbiting spacecraft ... the force of gravity.
It's NOT correct to say that a constant speed in a curved path indicates balanced forces.
That's true only when the constant speed is in a straight line. If the direction is changing,
there must be net forces on the moving object, even if its speed is constant.
Wiki User
∙ 14y ago
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How is a spacecraft launched?
There are about four forces that act on a lifting off spacecraft . The four forces are the thrust force, the weight of the spacecraft, the drag and the lift force.
Are there unbalanced or balanced forces on the moon?
Must be unbalanced. Otherwise, the moon would be moving at constant speed in a straight line.
Why does an orbiting satellites speed remain constant?
The satellite will not change speedbecause the gravity of the earth is a perpendicular force which only affectsdirection and not speed. Parallel forces must beapplied in order to change speed, butperpendicular forces only change direction.
Why do astronauts feel heavier during launch?
Astronauts feel heavier during launch because of the upward motion of the spacecraft. This has the effect of adding extra "g's," or gravity forces, making everything seem heavier while the thrust is occurring.
How do spacecraft takeoff?
In the rocket engine large amount of fuel are burnt. The burning fuel expands and is forces itself out the bottom of the rocket. As it pushes down, it pushes the rocket up. If the force pushing the rocket up exceeds its weight, the rocket will take off.
What are the forces when a spacecraft takes off?
Thrust is the force that propels a rocket or spacecraft and is measured in pounds, kilograms or Newtons.
When do forces balance?
Balanced forces occur when a body is at rest, and when a body is moving at a constant speed in a constant direction.
How is a spacecraft launched?
There are about four forces that act on a lifting off spacecraft . The four forces are the thrust force, the weight of the spacecraft, the drag and the lift force.
What the force on the spacecraft and force on the moon?
There are various forces acting on them, but a few forces which significantly decide their motion are: 1. On moon: Gravitational force due to earth and sun 2. On spacecraft: Gravitational force due to earth, moon and sun
What is time dependent forces?
Time dependent forces mean that a force changes, and is not constant. Therefore, acceleration of an object is also not constant if the force is changing.
What do baoanced forces do to moving objects?
When all forces are balanced, the object can either be moving at a constant velocity or be at rest. But because you asked for balanced forces on a moving object, it is moving at a constant velocity.
Which of newtons laws is in control of a spacecraft cruising through space at constant speed without using any fuel?
Unfortunately, the answer which [I think] is required is incorrect.I expect that the answer that you are required to provide is Newton's law of Inertia. A part of this states that a body in motion remains in constant motion in a straight line unless it is acted upon by an external force. However, there are very few place in space where this can happen. Even at points in space where the gravitational force of the Sun is exactly matched by that of the Earth, as soon as the spacecraft moves from that point, the forces will be in imbalance and the spacecraft will experience an external force which will affect its speed.
Can a body in equilibrium if it is in motion?
It can be in equilibrium if in constant motion (constant velocity) as no forces are acting on it (no acceleration)
Do you need constant force to produce constant speed?
Constant forces provide a constant speed. This is true on a basic physics level, you could argue and bring up examples but this is PHYSICS, it doesn't deal with real life. It's all mirrors and forces.
Why areal velocity is constant in central force?
If the force is constant then this will make the velocity of the object spinning constant as well, and for the velocity to be constant all the forces must be balanced and therefore constant
When the forces acting on an object are balanced the motion of the object?
are constant
When forces are balanced they?
the object(s) with the forces applied are constant, does not move and do not change direction.
