Answer:
b) Ball
Explanation:
The block is sliding and ball is rolling . Ball have greater energy as it has both linear kinetic energy and rotational kinetic energy . So it will have additional rotational energy as the linear kinetic energy of both of them will be equal because linear velocity of both are equal.
As ball has greater total kinetic energy , height attained by it will be greater on the ramp
The ball and block will reach the same height because they have the same potential energy.
The given parameters;
The kinetic energy of each object is calculated and follows;
K.E = ¹/₂mv²
The potential energy of each object is calculated as follows;
P.E = mgh
Based on the principle conservation of mechanical energy;
P.E = K.E
Since both objects have the same mass and velocity, their kinetic energy will be the same and the maximum kinetic energy is equal to the maximum potential energy. Applying the principle conservation of mechanical energy, both object will reach the same height.
Thus, we can conclude that the ball and block will reach the same height because they have the same potential energy.
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