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Questions and Answers
A block of mass $m$ slides down a frictionless inclined plane of angle $\theta$. What is the magnitude of the normal force exerted by the plane on the block?
A block of mass $m$ slides down a frictionless inclined plane of angle $\theta$. What is the magnitude of the normal force exerted by the plane on the block?
- $mg$
- $mg \sin(\theta)$
- $mg \cos(\theta)$ (correct)
- $mg \tan(\theta)$
A particle moves in a circular path with constant speed. Which of the following statements is true about its acceleration?
A particle moves in a circular path with constant speed. Which of the following statements is true about its acceleration?
- The acceleration is constant in magnitude and direction.
- The acceleration changes in both magnitude and direction.
- The acceleration is zero.
- The acceleration is constant in magnitude but changes direction. (correct)
A projectile is launched at an angle of 30 degrees with respect to the horizontal with an initial velocity $v_0$. Neglecting air resistance, what is the range of the projectile?
A projectile is launched at an angle of 30 degrees with respect to the horizontal with an initial velocity $v_0$. Neglecting air resistance, what is the range of the projectile?
- $\frac{2v_0^2}{g}$
- $\frac{v_0^2 \sqrt{3}}{g}$
- $\frac{v_0^2}{g}$
- $\frac{v_0^2 \sqrt{3}}{2g}$ (correct)
A force $\vec{F} = 3\hat{i} + 4\hat{j}$ (in Newtons) acts on an object, causing a displacement $\vec{d} = 2\hat{i} - \hat{j}$ (in meters). What is the work done by the force?
A force $\vec{F} = 3\hat{i} + 4\hat{j}$ (in Newtons) acts on an object, causing a displacement $\vec{d} = 2\hat{i} - \hat{j}$ (in meters). What is the work done by the force?
Two objects of masses $m_1$ and $m_2$ collide inelastically. Which of the following quantities is conserved?
Two objects of masses $m_1$ and $m_2$ collide inelastically. Which of the following quantities is conserved?
A simple pendulum of length $L$ oscillates with a small amplitude. What is the period of oscillation?
A simple pendulum of length $L$ oscillates with a small amplitude. What is the period of oscillation?
A wheel with a radius of $R$ is rotating with an angular velocity of $\omega$. What is the linear speed of a point on the rim of the wheel?
A wheel with a radius of $R$ is rotating with an angular velocity of $\omega$. What is the linear speed of a point on the rim of the wheel?
A conservative force acts on an object. Which of the following statements is true?
A conservative force acts on an object. Which of the following statements is true?
A mass is attached to a spring and oscillates with simple harmonic motion. At what point in its motion is the velocity maximum?
A mass is attached to a spring and oscillates with simple harmonic motion. At what point in its motion is the velocity maximum?
Two planets have radii $R_1$ and $R_2$, and masses $M_1$ and $M_2$ respectively. The ratio of the acceleration due to gravity on their surfaces, $g_1/g_2$, is:
Two planets have radii $R_1$ and $R_2$, and masses $M_1$ and $M_2$ respectively. The ratio of the acceleration due to gravity on their surfaces, $g_1/g_2$, is:
Flashcards
Classical Mechanics
Classical Mechanics
Deals with the motion of bodies under the influence of forces, focusing on predicting and describing this motion using fundamental principles.
Kinematics
Kinematics
The branch of mechanics that describes the motion of objects without considering the forces that cause the motion.
Dynamics
Dynamics
Deals with the relationship between the motion of bodies and the forces acting on them.
Velocity
Velocity
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Acceleration
Acceleration
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Mass
Mass
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Force
Force
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Momentum
Momentum
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Newton's Third Law
Newton's Third Law
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Kinetic Energy
Kinetic Energy
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