NEET UG · Physics

Work, energy and power

19 practice questions, each with the answer and an explanation.

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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 19 questions

What is the kinetic energy (in J) of a $10 kg$ body moving at $3 m/s$ ?
What is the kinetic energy (in J) of a $10 kg$ body moving at $4 m/s$ ?
What is the kinetic energy (in J) of a $4 kg$ body moving at $3 m/s$ ?
What is the kinetic energy (in J) of a $4 kg$ body moving at $6 m/s$ ?
A body of mass $2 kg$ falls freely from rest through a height of $20 m$ . What is its speed on reaching the ground? (take $g = 10 m/s^{2}$ , answer in m/s)
What is the kinetic energy (in J) of a $5 kg$ body moving at $2 m/s$ ?
A body of mass $4 kg$ falls freely from rest through a height of $5 m$ . What is its speed on reaching the ground? (take $g = 10 m/s^{2}$ , answer in m/s)
A body of mass $4 kg$ falls freely from rest through a height of $45 m$ . What is its speed on reaching the ground? (take $g = 10 m/s^{2}$ , answer in m/s)
A body of mass $5 kg$ falls freely from rest through a height of $5 m$ . What is its speed on reaching the ground? (take $g = 10 m/s^{2}$ , answer in m/s)
A body of mass $5 kg$ falls freely from rest through a height of $80 m$ . What is its speed on reaching the ground? (take $g = 10 m/s^{2}$ , answer in m/s)
A body of mass $2 kg$ falls freely from rest through a height of $5 m$ . What is its speed on reaching the ground? (take $g = 10 m/s^{2}$ , answer in m/s)
A body of mass $4 kg$ falls freely from rest through a height of $80 m$ . What is its speed on reaching the ground? (take $g = 10 m/s^{2}$ , answer in m/s)
A body of mass $1 kg$ falls freely from rest through a height of $5 m$ . What is its speed on reaching the ground? (take $g = 10 m/s^{2}$ , answer in m/s)
What is the kinetic energy (in J) of a $5 kg$ body moving at $6 m/s$ ?
What is the kinetic energy (in J) of a $10 kg$ body moving at $2 m/s$ ?
A body of mass $2 kg$ falls freely from rest through a height of $45 m$ . What is its speed on reaching the ground? (take $g = 10 m/s^{2}$ , answer in m/s)
A body of mass $4 kg$ falls freely from rest through a height of $20 m$ . What is its speed on reaching the ground? (take $g = 10 m/s^{2}$ , answer in m/s)
What is the kinetic energy (in J) of a $4 kg$ body moving at $4 m/s$ ?
What is the kinetic energy (in J) of a $5 kg$ body moving at $4 m/s$ ?

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Work, energy and power

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