Practice Problems
EQUATIONS:
v = d/t a = ∆v/t Δv = v_{f} – v_{i} p = m*v F = m*a g = 9.8 m/s^{2} Weight=m*g
CALCULATE THE FOLLOWING – SHOW YOUR WORK!!
 A motorcycle went from 0 m/s to 35 m/s in 5.1 s. What is the motorcycle’s acceleration?
 A race car was clock going 52 m/s. At another point, 5 s later, it was clocked going 155 m/s. What was the car’s acceleration?
 Calculate the speed of a bee flying 160 m in 23 s.
 Calculate the velocity of a car moving 300 m in 20 s going east towards the mall.
 Calculate the weight of a 6 kg pizza.
 A dog runs with a speed of 1.5 m/s on ice. It slides to a stop with an acceleration of 0.50 m/s^{2}. How long does it take for the dog to stop?
 A ball is hit so that it accelerates at 10 m/s^{2}. The ball hits a glove with a force of 5 N. What is the mass of the ball?
 A 1.5 x 10^{5} kg train is accelerating. The force applied to the train is 7.0 x 10^{4} N. What is the train’s acceleration?
 Calculate the momentum of an 8 kg box which slides at 5 m/s.
 Find the mass of a child who runs at a speed of 4 m/s to get a pizza with extra cheese. His momentum is 120 kg•m/s.
some material
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Click HERE to discover what your weight would be on different planets. Where would you be the heaviest? The lightest?

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Click HERE to read some information and do some activities to explain the differences between free fall and apparent weightlessness.

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