Physics, 4 short questions
posted by Nicola .
VERY IMPORTANT FOR AN ESSAY ASSIGNMENT. PLEASE HELP ASAP! THANK U VERYYYYY MUCH!
1. What force is needed to give a mass of 25 kg an acceleration of 20m/s squared?
2. A force of 6N acts upon a 2kg mass. What is the acceleration of the masS?
3. It takes a force of 50N to give a body an acceleration of 10m/s squared. What is the mass of the body?
4. a) what is the weight of a 10kg piece of iron?
b) what is the mass of an object that weighs 490N?
Try using Newton's second law: F = m a
m is the mass and a is the acceleration. The force will be in Newtons.

I am asking you people
Respond to this Question
Similar Questions

physics drbob can u plz help me???
VERY IMPORTANT FOR AN ESSAY ASSIGNMENT. PLEASE HELP ASAP! THANK U VERYYYYY MUCH! 1. What force is needed to give a mass of 25 kg an acceleration of 20m/s squared? 
science question..please answer quick!
If a bicycle rider and her bicycle have a mass of 50kg, how much force is needed to provide an accerlation of 0.7m/s (squared) Force on the tire /pavement: F= m*a I don't understand.. ;( Multiply mass times acceleration to get the … 
math
How much force is needed to accelerate a 50kg rider and her 250kg motorcycle at 5 m/s2? 
science
A force of 20 N gives an object an acceleration of 5m/s^2. (a) What force would be needed to give the same object an acceleration of 1m/s^2? 
science URGENT so need help
PLS HELP ASAP True or False 1. If a 40 kg person is accelerating at 10 m/s2, then the magnitude of the force acting on him or her is 400 N. (1 point) true false Multiple Choice 2. How much force is needed to make a 60 kg object accelerate … 
science pls help
i posted this earlier but got a confusing answer so pls help as best as u can asap! True or False 1. If a 40 kg person is accelerating at 10 m/s2, then the magnitude of the force acting on him or her is 400 N. (1 point) true false … 
science please help asap
1.a train with a mass of 120mg accelerates uniformly on a horizontal track. The resistance to movement is 5N per kN of the mass of the train. The force in the draw bar of the locomotive is 80kN. Calculate A.The force required for the … 
science please help and explain asap
A train with mass of 120mg accelerates uniformly on a horizontal track. The resistance to movement is 5N per kN of the mass of the train. The force in the drawbar locomotive is 80kN Calculate a. The force required for constant speed … 
AP Physics
A large box has a mass of 500kg and the coefficient of static friction for the box and the floor is 0.45, and the coefficient of kinetic friction is 0.30. a. What is the minimum horizontal force needed to get the box moving? 
Math
1. The variables x and y vary directly. When x is 3, y is 6. Find x when y = 2/3. 2. The force acting on an object varies directly with its acceleration. A force of 25 newtons accelerates an object at 1.25 m/s. What is the acceleration …