Acceleration
Velocity
Distance
Mass
Weight
100

A 40,000N force accelerates a car at 5m/sxs.  If the same force accelerates a car twice as heavy, the acceleration would be ...

What is 2.5 m/sxs?

100

A falling object that is no longer accelerating is said to have reached this.

What is terminal velocity.

100

If you are riding your bike at 20 mph and you brake to reduce your speed to 15 mph, when you release the brake your speed will....

What is "continue at 15 mph?

100

Fred's calf weighs 800 Newtons. This is the calf's mass.

What is 80 kg?

100

Carson has a mass of 69 kg.  His weight on Earth is...

What is 150 pounds?

200

An 800 kg car is accelerated by a force of 40,000N. This is its acceleration.

What is 50 m/sxs?

200

  Jaxon and Luke drop a bowling ball and anvil from a tower at the same time.  After 2 seconds, this is the object with the faster velocity.

What is neither.  They will have the same velocity.

200

George drives a truck that weighs 10,000 pounds. Its mass is this.

What is 4545.5 Kg?

200

Luke has a mass of 98 kg.  His weight on the Moon is...

What is 36 pounds?

300

A skydiver is falling with dynamic equilibrium.  After 10 seconds he consults his gps watch which informs him his velocity is 95 mph.  Calculate his acceleration.

What is zero? nothing? zip? nil? nada?

300

A garbage truck and a cement truck fall off a cliff at the same instant.  Their velocity downward after 3 seconds is this.

What is 30 m/s?

300

A car has a mass of 1500 kg.  It accelerates at 3 m/sxs.  The net force on the car is....

What is 4500 N?

400

A rover on the moon accelerates from 4 m/s to 12 m/s in 8 seconds. Calculate its acceleration.

What is 1 m/sxs?

400

A 10,000 kg truck starting at rest experiences a net force of 80,000 Newtons for 5 seconds. This is its velocity at the end of the 5 seconds.

What is 40 m/s?


400

A motorcyclist drives on to a test track at 10 mph and accelerates at a constant acceleration  to 120 mph. (1mph = 1.467 ft/sec). It takes 10 seconds. The distance he covers is....

What is 954 ft?

500

A space probe releases a steel ball in Pluto's atmosphere and it falls 7.75 meters in 5 seconds.  The value of g or the acceleration due to gravity on Pluto is ....

What is 0.62?

500

A 400,000 N airplane lands and experiences a braking force of 500,000 N causing it to stop in 20 seconds. Calculate its speed the instant before the braking began.

What is 250 m/s?

500

An astronaut throws a 1 kg ball straight up from the surface of the Moon. The force of gravity on the moon is 1.63 m/s2. It takes 30 seconds for it to hit the ground. The height that he threw it is....

What is 183.3755 m?


    • The ball is thrown straight up and then comes back down, taking a total of 30 seconds.
    • This means it takes 15 seconds to reach the highest point and 15 seconds to come back down.

  2. Use the equation of motion:

    • On the Moon, the acceleration due to gravity (\[ g \]) is approximately \[ 1.63 \, \text{m/s}^2 \].
    • The equation for the distance traveled under constant acceleration is \[ d = v_i t + \frac{1}{2} a t^2 \].

  3. Calculate the initial velocity:

    • At the highest point, the final velocity (\[ v_f \]) is 0 m/s.
    • Using \[ v_f = v_i + at \], where \[ t = 15 \] seconds and \[ a = -1.63 \, \text{m/s}^2 \]:
    • \[ 0 = v_i - 1.63 \times 15 \]
    • \[ v_i = 1.63 \times 15 = 24.45 \, \text{m/s} \].

  4. Calculate the distance traveled:

    • Use \[ d = v_i t + \frac{1}{2} a t^2 \] for the upward journey:
    • \[ d = 24.45 \times 15 + \frac{1}{2} \times (-1.63) \times (15)^2 \]
    • \[ d = 366.75 - \frac{1}{2} \times 1.63 \times 225 \]
    • \[ d = 366.75 - 183.375 \]
    • \[ d = 183.375 \, \text{m} \].
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