Read the scenario, then answer the questions. a 2 kg ball is thrown upward with a velocity of 15 m/s. what is the kinetic energy
2 answers:
Explanation:
We have,
Mass of the ball is 2 kg and it is thrown upward with a velocity of 15 m/s.
It is required to find the kinetic energy of the ball as it is being thrown. The kinetic energy is possessed due to the motion of motion. It is given by :
Let potential energy of the ball when it gets to its maximum height just before falling back to the ground will be equal to the kinetic energy i.e. 225 Joules. As the energy of the system remains conserved.
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Answer:
The velocity of the particle from T = 0 s to T = 4 s is;
0.5 m/s
Explanation:
The given parameters from the graph are;
The initial displacement (covered) at time, t₁ = 0 s is x₁ = 1 m
The displacement covered at time, t₂ = 4 s is x₂ = 3 m
The graph of distance to time, from time t = 0 to time t = 4 is a straight line graph, with the velocity given by the rate of change of the displacement to the time which is dx/dt which is also the slope of the graph given as follows;
The velocity of the particle from t = 0 s to t = 4 s = 1/2 m/s = 0.5 m/s.