midtermpractice.docx

# midtermpractice.docx - 1 Calculate the velocity of a car(in...

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1. Calculate the velocity of a car (in m/s) that starts from rest and accelerates at 2 m/s 2 for 6 seconds. 2. Calculate a pendulum's frequency of oscillation (in Hz) if the pendulum completes 16 cycles in 0.5 s. 3. Calculate the centripetal acceleration of a 2 kg mass (in m/s 2 ) if it is attached to a 0.5 m rope and revolves at a speed of 21 m/s? 4. Calculate the acceleration of a car (in m/s 2 ) that accelerates from 0 to 27 m/s in 6 s along a straight road. 5. Calculate the centripetal acceleration (in m/s 2 ) of a car travelling 6 m/s around a curved road with a radius of 10 m. 6. A car's speed changes from 19 m/s to 23 m/s in 3 seconds. Calculate the acceleration of the car in units of meters per second squared.

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7. Neglecting air resistance, what is the speed of an object (in m/s) 7 seconds after being dropped from a great height? 8. You push on a block on frictionless ice with a force of 94 N, causing it to accelerate at 9 meters per second squared. Calculate the mass of the block (in kg).
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