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Introducing new Paper mode
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- Multiple ChoicePlease save your changes before editing any questions.Why does a car accelerate as it round a corner at a constant speed?Its direction changesIt doesn'tIt slows downIts speeds up
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In each of the following cases, determine where the car has no acceleration?
A car speeds up after a stoplight turns green.
A car slows down as it approaches a red light
A car with the cruise control set at 80 km/h going down a straight highway
A car turning a curve at a constant speed
- Multiple ChoicePlease save your changes before editing any questions.
The SI unit for acceleration is
mph
ft/sec
m/s2
m/s
- Multiple ChoicePlease save your changes before editing any questions.
When are you undergoing an acceleration in a car? (Choose all that are correct)
speed up
slow down
make turns
constant speed
- Multiple ChoicePlease save your changes before editing any questions.A negative acceleration means that your object is _____.not acceleratingnot movingspeeding upslowing down
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A positive acceleration means that your object is _____.
not accelerating
not moving
speeding up
slowing down
- Multiple ChoicePlease save your changes before editing any questions.A box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest. Find the acceleration.30 m/s24 m/s29 m/s281 km/hr
- Multiple ChoicePlease save your changes before editing any questions.A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. What's the acceleration?24 m/s218 m/s216 m/s216 m/s
- Multiple ChoicePlease save your changes before editing any questions.A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car.2.2m/s27.0m/s25.7m/s270m/s2
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The equation for acceleration is...