Answer:
Li has less mass and therefore less inertia, so he can change his motion more easily than Raj.
Explanation:
Inertia describes the resistance of an object to any change in its state of motion, and it depends on the mass of the object only. In particular:
- if an object has a large inertia (large mass), then it is more difficult to change its state of motion (i.e. to put it in motion, or to slow it down, or to change its direction of motion)
- if an object has small inertia (small mass), then it is more easy to change its state of motion
In this problem, Li has less mass than Raj, so he has less inertia, therefore he can change his motion more easily than Raj.
Answer:
The correct option is: B that is 1/2 K
Explanation:
Given:
Two carts of different masses, same force were applied for same duration of time.
Mass of the lighter cart = 
Mass of the heavier cart = 
We have to find the relationship between their kinetic energy:
Let the KE of cart having mass m be "K".
and KE of cart having mass m be "K1".
As it is given regarding Force and time so we have to bring in picture the concept of momentum Δp and find a relation with KE.
Numerical analysis.
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Now,
Kinetic energies and their ratios in terms of momentum or impulse.
KE (K) of mass m.
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...equation (i)
KE (K1) of mass 2m.
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...equation (ii)
Lets divide K1 and K to find the relationship between the two carts's KE.
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The kinetic energy of the heavy cart after the push compared to the kinetic energy of the light cart is 1/2 K.
Answer:
E = 1/2 * k x^2 is the energy stored in the spring
E = 1/2 * 260 N/m * .08^2 m = .832 Joules