Ask Question
PhysicsPhysics
17 January, 15:31

A rock is thrown straight up. What is the net external force acting on the rock when it is at the top of its trajectory?

+4
Answers (1)
  1. 17 January, 16:55
    0
    Net external force acting on the rock when it is at the top of its trajectory is force due to gravity (mg).

    Explanation:

    The forces acting on a rock thrown up are force due to gravity and air resistance. Air resistance is directly proportional to velocity of rock, when velocity is zero air resistance is zero. When it is at the top of its trajectory its velocity is zero. So air resistance is also zero. Hence only gravitational force acts on the rock.

    Net external force acting on the rock when it is at the top of its trajectory is force due to gravity (mg).
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “A rock is thrown straight up. What is the net external force acting on the rock when it is at the top of its trajectory? ...” in 📙 Physics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
If you increase the frequency of a sound wave four times what will happen to its speed
Answers (2)
Five 16 resistors are connected in series across a 120 v generator. what is the equivalent resistance of the circuit?
Answers (1)
As the amplitude of a wave becomes greater, the compressions become less dense. Question 18 options: True False
Answers (1)
A 20.5 kg box initially at rest is pushed 5.93 m along a rough, horizontal floor with a constant applied horizontal force of 95.3501 N. If the coefficient of friction between box and floor is 0.389, find the work done by the applied force.
Answers (1)
In a double-slit experiment, two beams of coherent light traveling different paths arrive on a screen some distance away. what is the path difference between the two waves corresponding to the third bright band out from the central bright band?
Answers (1)
New Questions in Physics
Two identical objects are moving directly toward one another at the same speed v. ~v - ~v m m What is the total kinetic energy of the system of the two objects?
Answers (1)
Why would a long series of gradual ramps be better than one short, steep ramp for moving heavy blocks of stone?
Answers (1)
Why are some liquids more viscous than others?
Answers (1)
If a person weighs 125 lbs, 8oz., how many mg does s/he weigh
Answers (1)
An iron rod is: A:a good conductor of heat and electricity, but not magnetic B: magnetic and a good conductor of heat, but is an insulator of electricity C: magnetic and a good conductor of heat and electricity D: not magnetic and an insulator of
Answers (1)
Home » Physics » A rock is thrown straight up. What is the net external force acting on the rock when it is at the top of its trajectory?
Sign Up Forgot Password?