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#particle motion

21 public questions tagged with this topic.

A 3kg particle moves with velocity v\=6i^m/s at r\=2j^m. What is the magnitude of its angular momentum about the origin?

L = r×p = |i^j^k^020600| = k^(0×0−2×6) = −12k^kg m2/s. Magnitude = 12kg m2/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 12 kg m²/s. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

A 4kg particle moves with velocity v\=−5i^+2j^m/s at r\=3i^m. What is the z-component of its angular momentum?

L = r×p = |i^j^k^300−520| = k^(3×2−0×(−5)) = 6k^kg m2/s. Z-component = 6kg m2/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 6 kg m²/s. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

A 2kg particle moves with velocity v\=−5i^−3j^m/s at r\=4i^m. What is the z-component of its angular momentum?

L = r×p = |i^j^k^400−5−30| = k^(4×(−3)−0×(−5)) = −12k^kg m2/s. Z-component = −12kg m2/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to -12 kg m²/s. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

A 4kg particle moves with velocity v\=−2j^m/s at r\=5i^m. What is the magnitude of its angular momentum about the origin

L = r×p = |i^j^k^5000−20| = k^(5×(−2)−0×0) = −10k^kg m2/s. Magnitude = 10kg m2/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 10 kg m²/s. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

A 2kg particle moves with velocity v\=5i^−2j^m/s at r\=3j^m. What is the z-component of its angular momentum?

L = r×p = |i^j^k^0305−20| = k^(0×(−2)−3×5) = −15k^kg m2/s. Z-component = −15kg m2/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to -15 kg m²/s. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

A 2kg particle moves with velocity v\=4i^+5j^m/s at r\=−3j^m. What is the z-component of its angular momentum?

L = r×p = |i^j^k^0−30450| = k^(0×5−(−3)×4) = 12k^kg m2/s. Z-component = 12kg m2/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 12 kg m²/s. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

A 3kg particle moves with velocity v\=−4j^m/s at r\=6i^m. What is the magnitude of its angular momentum about the origin

L = r×p = |i^j^k^6000−40| = k^(6×(−4)−0×0) = −24k^kg m2/s. Magnitude = 24kg m2/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 24 kg m²/s. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

A 5kg particle moves with velocity v\=2i^−3j^m/s at r\=4j^m. What is the z-component of its angular momentum?

L = r×p = |i^j^k^0402−30| = k^(0×(−3)−4×2) = −8k^kg m2/s. Z-component = −8kg m2/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to -8 kg m²/s. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

A 4kg particle moves with velocity v\=3j^m/s at r\=2i^m. What is the magnitude of its angular momentum about the origin?

L = r×p = |i^j^k^200030| = k^(2×3−0×0) = 6k^kg m2/s. Magnitude = 6kg m2/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 6 kg m²/s. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

A 1kg particle moves with velocity v\=−3i^+4j^m/s at r\=2i^m. What is the z-component of its angular momentum?

L = r×p = |i^j^k^200−340| = k^(2×4−0×(−3)) = 8k^kg m2/s. Z-component = 8kg m2/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 8 kg m²/s. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

A 5kg particle moves with velocity v\=4i^m/s at r\=−2j^m. What is the magnitude of its angular momentum about the origin

L = r×p = |i^j^k^0−20400| = k^(0×0−(−2)×4) = 8k^kg m2/s. Magnitude = 8kg m2/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 8 kg m²/s. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

A 3kg particle moves with velocity v\=2i^+3j^m/s at r\=4i^m. What is the z-component of its angular momentum?

L = r×p = |i^j^k^400230| = k^(4×3−0×2) = 12k^kg m2/s. Z-component = 12kg m2/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 12 kg m²/s. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.