1  How far will a mass of 10 kg fall from the top of a
    building 250 meters tall in 5 sec.?
      > 125 meters
 2  How long will it take a mass to reach a speed of 70 m/sec.
    if it falls from rest?
      > 7 sec.
 3  How long will it take a mass of 40 kg to fall 180 meters
    if it starts from zero speed?
      > 6 sec.
 4  If a mass of 10 kg is thrown down at a speed of 25 m/sec. How long
    will it take to reach the ground from a height of 180 meters?
      > 4 sec.
 5  If a mass of 10 kg. on top of a building 100 m tall falls 125 m.
    How far does it fall?
      > 125 m
 6  If a mass falls from the top of a building 96 m tall and hits
    the ground in 4 seconds, what is the acceleration of gravity?
      > 12 nt/kg
 7  What is the gravitational constant on a planet if 3 kg.
    weighs 60 nt.
      > 20 nt/kg
 8  What force is needed to give a mass  of 3 kg. an acceleration of
    8 m/sec. squared?
      > 24 nt.
 9  A force of 70 nt acts on a mass of 5 kg. What is the acceleration?
      > 14 m/sec Sq.
 10  What is the weight on earth of a mass of 321.7 kg.?
      > 3217 nt
 11  If a force of 900 nt pushes a mass of 100 kg upward at
     2 m/sec Sq. What is the acceleration of gravity?
      > 7 m/sec. Sq
 12  A mass of 10 kg is pushed downward by a force of 50 nt.
     What is its acceleration?
      > 15 m/sec. Sq.
 13  What mass would be accelerated at 5 m/sec. Sq. by a
     force of 8 nt.?
      > 1.6 kg.
 14  What would the acceleration be on a 9 kg mass if it is
     pushed by a force of 18 nt.?
      > 2 m/sec. Sq.
 15  What coef. of friction is needed to slow a 15 kg mass at a
     rate of 5 m/sec. Sq. on a horizontal surface?
      > 0.5
 16  What is the kinetic energy of a 10 kg mass moving at 5 m/sec
     at a height of 25 m?
      > 125 joules
 17  What is the gravitational energy of a 10 kg mass moving at
     5 m/sec at a height of 25 m?
      > 2500 joules
 18  What is the total mechanical energy of a 10 kg mass moving at
     5 m/sec at a height of 25 m?
      > 2625 joules
 19  How far can a mass of 10 kg with 500 joules of kinetic energy
     move against a force of 25 nt?
      > 20 meters
 20  How far must a force of 50 nt push a mass of 10 kg to give it
     500 joules of kinetic energy?
      > 10 meters
 21  How high can a force of 50 nt lift a mass of 10 kg?
      > NO LIMIT
 22  What is/are the metric units for weight?
      > newton
 23  What is/are the metric units for mass?
      > Kilogram
 24  What is/are the metric units for force?
      > newton
 25  What is/are the metric units for energy?
      > joule
 26  What is/are the metric units for direction?
      > there is none
 27  What is/are the metric units for work?
      > joule
 28  What is/are the metric units for volume?
      > liter
 29  What is the maximum result if vectors of size 10 nt, 20 nt and
     30 nt are added?
      > 60 nt.
 30  What is the minimum result if vectors of size 10 nt, 20 nt and
     30 nt are added?
      > zero
 31  What is the most likely result if perpendicular vectors of
     4 nt and 3 nt are added?
      > 5 nt
 32  What is the direction of a vector 10 nt N 30 E?
      > N 30 E
 33  Which of the following can NOT a vector?
      > mass
 34  What is the momentum of a 10 kg mass that is moving
     at 20 m/sec.?
      > 200 kg-m/sec.
 35  A force of 20 nt pushes a 10 kg mass for 20 seconds.
     What is the change in momentum?
      > 400 kg-m/sec.
 36  A mass of 10 kg moving at 20 m/sec. hits a mass of 15 kg. that
     is not moving. If they stick together, what is there speed?
      > 8 m/sec.
 37  A 1000 kg cannon fires a 5 kg cannonball at a speed of 300 m/sec.
     What is the recoil speed of the cannon?
      > 1.5 m/sec.
 38  A 10 kg mass moving at 6 m/sec. hit a stationary mass of 5 kg.
     What is the speed of the 5 kg. mass after an elastic collision?
      > 8 m/sec.
 39  A 10 kg mass moving at 6 m/sec. hit a stationary mass of 5 kg.
     What is the speed of the 10 kg. mass after an elastic collision?
      > 2 m/sec.
 40  A mass of 10 kg moving at 20 m/sec. is slowed by a force of
     15 nt for 4 sec. What is the new speed?
      > 14 m/sec.
 41  A mass of 10 kg with 300 joules of kinetic energy is slowed by a
     force of 20 nt for 5 meters. What is the new kinetic energy?
      > 200 joules
 42  A mass of 10 kg is accelerated from rest by a force of 50 nt for
     10 meters. What is the speed of the 10 kg mass?
      > 10 m/sec.
 43  A mass of 10 kg is lifted 30 meters from the ground by a force
     120 nt. What is its kinetic energy?
      > 600 joules
 44  A mass of 10 kg is lifted 30 meters from the ground by a force
     106 nt. What is its speed?
      > 6 m/sec.
 45  A mass of 10 kg is lifted 30 meters from the ground by a force
     120 nt. What is its gravitational energy?
      > 3000 joules
 46  A 1000 kg cannon fires a 5 kg cannonball at a speed of 200 m/sec.
     If the cannon is 2 meters long, what is the average force needed?
      > 50000 nt.
 47  A 0.01 kg bullet moving at 200 m/sec. is stopped in 0.25 meters.
     What average force is needed?
      > 800 nt.
 48  How far will a 10 kg mass move in 5 sec. at a speed of 20 m/sec.?
      > 100 meters
 49  On a planet where a mass of 10 kg falls 125 meters in 5 sec. How
     far will a 20 kg mass fall in 5 sec.?
      > 125 meters
 50  On a planet where a mass of 10 kg falls 125 meters in 5 sec. How
     long will it take for the same mass to fall 500 meters?
      > 10 sec.