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प्रश्न
Draw a diagram to show how a rocket engine provides a force to move the rocket upwards. Label the diagram appropriately.
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उत्तर
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संबंधित प्रश्न
According to the third law of motion, when we push on an object, the object pushes back on us with an equal and opposite force. If the object is a massive truck parked along the roadside, it will probably not move. A student justifies this by answering that the two opposite and equal forces cancel each other. Comment on this logic and explain why the truck does not move.
What is the force which produces an acceleration of 1 m /s2 in a body of mass 1 kg ?
If action is always equal to reaction, explain why a cart pulled by a horse can be moved.
Explain why, a runner presses the ground with his feet before he starts his run.
State Newton’s third law of motion and give two examples to illustrate the law.
“Wearing helmet and fastening the seat belt is highly recommended for safe journey” Justify your answer using Newton’s laws of motion.
Consider a frame that is made up of two thin massless rods AB and AC as shown in the figure. A vertical force `vec"P"` of magnitude 100 N is applied at point A of the frame.
Suppose the force is `vec"P"` resolved parallel to the arms AB and AC of the frame.
The magnitude of the resolved component along the arm AC is xN.
The value of x, to the nearest integer, is ______.
[Given: sin(35°) = 0.573, cos(35°) = 0.819, sin(110°) = 0.939, cos(110°) = –0.342]
Why do the action and reaction forces in a pair not cancel each other out?
In a hose pipe ejecting water, what is the reaction force?
A book is resting on a table. Which of the following is the correct reaction force to the gravitational pull of the Earth on the book?
