Mechanics Random Retrieval

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Mechanics Random Retrieval

This quiz contains all the questions in the Mechanics section. The website will pick 10 questions at random.

1 / 10

A uniform plank GD has mass 13 kg and length 1.8 m. A mass 6.8 kg is attached to the plank at D. The plank remains balanced due two ropes attached The tension in the rope at G is half the tension of the the rope at A, calculate the tension in the rope at A. g = 9.81 ms-2

2 / 10

You're down the allotment and are carrying your 65 kg Nana in a 20kg wheelbarrow. Your Nana's and the wheelbarrow's weight acts 60 mm from the centre of the wheel. What force do you need to apply to the end of the handle, 1.2 m from the centre of the wheel, to move your Nana about? g = 9.81 ms-2

3 / 10

The diagram shows a swing 1.43m long. Matilda has a mass of 35 kg and is released from rest at position A by Miss Honey. Calculate the speed of Matilda at position B.

4 / 10

A crane lifts a Rolls-Royce Trent 1000 engine into place. The engine has a mass of 5,936 kg and is lifted vertically 10 m by the crane in 12 seconds. Calculate the power of the crane. g = 9.81 Nkg-2.

5 / 10

An Airbus A380 at maximum take-off weight, Amax = 575,000 kg, is taxing along at 37 km h-1. The pilot isn't paying attention and accidently hits head on another A380 that is completely empty taxing at 40 km h-1, Amin = 277,145 kg and they rebound off each other in opposite directions. If the collision reduces the speed of Amax to 6 ms-1 then what speed is Amin now travelling at?

6 / 10

Sheffield is famous for its snooker. A 170 g white ball is struck with a cue and travels along the snooker table at 12 ms-1. Calculate it's momentum.

7 / 10

This graph shows a falling object at its terminal velocity. Calculate its velocity.

8 / 10

Neil Armstrong uses a catapult to horizontally shoot a rock at Buzz Aldrin on the Moon from a height of 2 m. He misses and it lands at Buzz's feed, 20 m from where it was fired.

Calculate the velocity the rock was fired at from the catapult. gMoon = 1.62 ms-2

9 / 10

A sandwich falls from an Air Traffic Control (ATC) tower of height 102 m. How long will it take to hit the ground?

10 / 10

A scuba diver surfaces after a dive. She begins to swim towards the boat at a constant speed of 67 cms-1 and due to a current in the water this takes her 70 seconds an an angle of 32°. Calculate the time taken if there was no current at the same speed.

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