Homework Statement
A man pushes a lawnmower with a force of 200N. If the vertical component of this force is 80N how much work is done in pushing the lawnmower 6.0m horizontally?
Homework Equations
Work=force x distance
The Attempt at a Solution
Firstly I have to find the angle to the ground...
Homework Statement
The lorry starts from rest with an acceleration of 2 ms-2.
What is the effective thrust is being exerted?
Homework Equations
acceleration=2 ms-2
starts from rest so initial velocity =0 ms-1
The Attempt at a Solution
F=ma
[/B]
I have another question and I have no clue on how to attempt this one
The lorry starts from rest with an acceleration of 2 ms-2.
What is the effective thrust is being exerted?
Homework Statement
A truck (mass 12000 kg) carries a load of 16000kg. What vertical force is exerted on the road by each wheel assuming the mass is uniformly spread?
Homework Equations
F=ma[/B]The Attempt at a Solution
12000kg+16000kg=28000kg total mass
28000/4=7000kg to get mass on each...
Homework Statement
A ship sails 50km E then 40km N then 20km W. This took 6 hours. Calculate the distance travelled, the displacement, the average speed and the average velocity.
not quite sure on how to attempt this question
Homework Statement
Jim stands with a ball at the rear of a diving board, 10 m above the
surface of a swimming pool. His friend Bob is swimming below, at a
horizontal distance of 6 m from the front of the board. Jim thinks it
would be funny to roll his ball along the diving board so that it...