1:   The speed of a body is doubled, the quantity which gets doubled is
Options:
1. acceleration
2. momentum
3. KE
4. weight

Explanation:

Sorry, No description available.

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2:   1 KWH is equal to
Options:
1. 3.6 X 10^6 J
2. 3.6 X 10^4 J
3. 3.6 X 10^3 J
4. 3.6 X 10^-4 J

Explanation:

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3:   If the momentum increases by 50% the percentage increase in KE is
Options:
1. 75%
2. 100%
3. 125%
4. 150%

Explanation:

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4:   Masses m and 2m have same linear momentum. The ratio of their KE is
Options:
1. 1:2
2. 2:1
3. 1:4
4. 4:1

Explanation:

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5:   The masses of two bodies are 1 kg and 4 kg and have same KE, the ratio of linear momentum is
Options:
1. 1:2
2. 4:1
3. 1:4
4. 2:1

Explanation:

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6:   If a force F produces a velocity v in the body, then the power consumed is
Options:
1. F/v
2. v/F
3. F.v
4. Fv2

Explanation:

Sorry, No description available.

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7:   1 HP is equal to ------- watt
Options:
1. 74.6
2. 746
3. 7460
4. 550

Explanation:

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8:   A weight of 60 kg is pulled along horizontal 2m by a string. If u=0.5, inclination of string with horizontal is 60 degree, g=9.8 m/s2,. Work done is
Options:
1. 294 J
2. 15 J
3. 588 J
4. 197 J

Explanation:

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9:   Spring constants of two springs are 1500 N/m and 3000 N/m. When stretched by equal forces, the ratio of PE will be
Options:
1. 4:1
2. 1:4
3. 2:1
4. 1:2

Explanation:

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10:   The PE in spring is U when stretched by 2 cm. On stretching by 10 cm, the PE will be
Options:
1. 1/U2
2. 1/U
3. 25 U
4. none of these

Explanation:

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