Recent content by fleur

Would the angle be 68 because inverse tan(200/80)

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...

The mass is 28000kg,so 28000x2=56000 N would i just multiply it by the acceleration of 2 ms-2 but what about the acceleration due to gravity

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?

I have made the changes is the method i used correct though?

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

I did square root of 2x6/9.81

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...