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Questions and Answers
What is the formula for displacement?
What is the formula for displacement?
- $S = \frac{1}{2}at^2$
- $v = u + gt$
- $V = u + at$
- $S = ut + \frac{1}{2}at^2$ (correct)
What is the unit of impulse?
What is the unit of impulse?
- m/s$^2$
- N
- kg m/s (correct)
- dyne
What is the formula for velocity in terms of initial velocity, acceleration, and time?
What is the formula for velocity in terms of initial velocity, acceleration, and time?
- $v = u + gt$
- $v = \frac{s}{t}$
- $v = u + at$ (correct)
- $v = \frac{u + v}{2}$
What is the formula for force?
What is the formula for force?
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What is the formula for momentum?
What is the formula for momentum?
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Study Notes
Displacement
- Displacement is the vector quantity representing the change in position of an object.
- Formula: Displacement (Δx) = Final position (x_f) - Initial position (x_i)
Impulse
- Impulse is the product of force applied and the time duration it is applied.
- Unit of impulse: Newton-second (Ns) or kg·m/s
Velocity
- Velocity measures the rate of change of displacement with respect to time.
- Formula: Velocity (v) = Initial velocity (v_i) + (Acceleration (a) × Time (t))
Force
- Force is an interaction that causes an object to change its motion (acceleration).
- Formula: Force (F) = Mass (m) × Acceleration (a)
Momentum
- Momentum is the product of an object's mass and its velocity.
- Formula: Momentum (p) = Mass (m) × Velocity (v)
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