Answer: a= 2 m/s²
Explanation: acceleration = change of speed/ time = 20 m/s / 10 s
The answer is B: energy is transferred, but it can go to the products or the reactants.
Answer:
Explanation:
The formula for kinetic energy Ke=1/2mv^2 where Ke is kinetic energy, m=mass, and v= velocity.
If the kinetic energy is increased that means that there must be an increase in mass or velocity. However, since the velocity is squared that means that velocity affects the kinetic energy of the object more than the mass does.
Answer:
Explanation:
magnitude: 180-50=130N
Direction: in the direction same as the second horizontal force
Answer:
speed of slower car is 71 km/h
Explanation:
The distance between two cars is given as
time taken by two cars to meet is given as
now the relative speed of two cars is given as
also it is given that the difference of speed of two cars is
now from above two equations we have
