A car of mass 1000 kg accelerates at 3 m/s squared. What is the resultant force acting on it?
Answer and explanation
Correct answer: A. 3000 N, from F = m x a
- Step 1: Use Newton's second law: F = m x a. Step 2. F = 1000 x 3 = 3000 N. Answer: 3000 N. Why not the others: 333 N divides m by a; 1003 N adds the numbers; 300 N uses a factor with no basis.
Practise more Physics, Chemistry and Biology Basics.
Free questions with an explanation for every one, and full timed Iraqi Third Intermediate Ministerial Exams mock tests.
More Physics, Chemistry and Biology Basics questions
- Which part of a plant cell is mainly responsible for photosynthesis?
- Which gas do plants take in from the air as a raw material for photosynthesis?
- What is the chemical formula of water?
- What is the SI unit of electrical resistance?
- A current of 2 A flows through a resistor of 6 ohms. What is the potential difference across the resistor?
- What is the chemical symbol for sodium?