1. The change in momentum in the object of the following figure is: 10 kg m / s

ID: 1883973 • Letter: 1

Question

1. The change in momentum in the object of the following figure is:

10 kg m / s

20 kg m / s

15 kg m / s

50 kg m / s

2. The collision where the kinetic energy is conserved is known as:

a. Inelastic

b. Momentary

c. Elastic

d. None of the above

3. The collision where the kinetic energy is not preserved is known as;

a. Elastic

b. Inelastic

c. Momentary

d. None of the above

4. In a collision, where the bodies stay together moving with the same speed is known as:

a. Perfectly inelastic collision

b. Perfectly elastic collision

c. Momentary collision

d. None of the above

5. In a collision where the masses are equal in size, one of them is initially at rest, there is total transfer of energy known as:

a. Inelastic

b. Elastic

c. Momentary

d. None of the above

Before Vi*--3 After Copyricht2008 Pearsan Education, Inc. publishing as Pearsan Adcison-Wes ey.

Solution:

1) change of momentum = m ( v-u)

=> 0.40(20+30)

=> 20 kgm/s

2) elastic collision

3) Inelastic

4) perfectly inelastic collision

5) elastic

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