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Calculate the EFFORT FORCE required to balance the LOAD shown below.

44.2 N

28.8N

53.6N

68.0N

Calculate the MASS of the LOAD required to balance the EFFORT applied shown below.

118.2kg

1160.1N

824.6N

266.2kg

Calculate the distance D required to balance the EFFORT and LOAD shown below.

6.45m

5.64m

4.54m

6.65m

A van accelerates from a Velocity of 22m/s up to 63m/s in 26 seconds. Calculate its average ACCELERATION

1.58 metres per second squared

2.18 metres per second squared

1.12 metres per second squared

3.32 metres per second squared

A large cable reel escapes down a ramp with Velocity of 1m/s up to 7m/s in 3.1 seconds. Calculate its average ACCELERATION

1.94 metres per second squared

0.49 metres per second squared

2.12 metres per second squared

1.64 metres per second squared

A 20kg bag of sand falls from a scaffold. With what FORCE will it strike the ground?

196.2 N

196.2kg

169.2N

169.2kg

A lift on a building site lifts 400kg of bricks 50m to the top of a building. Calculate the WORK DONE by the lift?

196.2kJ

238.4J

277.6kJ

166.6J

A crane on a building site lifts 4.1 tonnes of steel beams 65m to the top of a building. Calculate the WORK DONE by the crane?

2.61MJ

3.35kJ

3.35MJ

2.61mJ

A lift on a building site lifts 400kg of bricks 50m to the top of a building in 24 seconds. Calculate the POWER of the lift motor?

8.175kW

10.224kW

7.725kW

9.887kW

A crane on a building site lifts 4.1 tonnes of steel beams 65m to the top of a building in 2 minutes. Calculate the POWER of the crane motor?

21.79kW

19.21kW

22.22kW

35.51kW

In the picture below, the pile of bricks hits the ground with a force of 865N. Calculate the MASS of the bricks.

88.18kg

78.18kg

98.18kg

108..18kg

The crane shown below lifts a load of blocks with a mass of 2 tonnes a vertical distance of 25 metres in 4 minutes. Calculate the POWER of the crane motor.

2.044kW

1.999kW

2.144kW

2.024kW

A crane raises a 2.5 tonne load vertically in 4 minutes and 10 seconds. The crane motor is rated at 10kW. What is the vertical height to which to load is raised?

91.1m

101.9m

88.9m

110.1m

The van covers a distance of 15km in half an hour. Calculate its average speed.

8.33m/s

10.33m/s

7.33m/s

9.33m/s

An electric hoist on the side of a building lifts a quantity of electrical equipment through a vertical distance in 3.5 minutes. The motor rating of the hoist is 189.19w. Calculate the MASS of the LOAD.

90g

80kg

90000g

800g

What CLASS of lever is shown here (Effort is indicated by the arrow) -

1st class

2nd class

3rd class

4th class

What CLASS of lever is shown here (Effort is indicated by the arrow) -

2nd class

1st class

3rd class

4th class

What CLASS of lever is shown here (Effort is indicated by the arrow) -

3rd class

1st class

2nd class

4th class

What is the VELOCITY RATIO of the pulley system shown here?