A particle of mass 0.8 kg has acceleration (−3i+5j) m s−2(-3\mathbf{i}+5\mathbf{j})\text{ m s}^{-2}(−3i+5j) m s−2.
Find the resultant force acting on the particle.
Find the magnitude of the resultant force. Give your answer to 3 significant figures.
Find the angle between the resultant force and the positive i\mathbf{i}i direction. Give your answer to the nearest degree.
49 exam-style questions on OCR (MEI) A Level Maths 3.5 Newton's Laws of Motion, covering 3.5.1 Meaning of Newton's three laws, 3.5.2 Equation of motion, 3.5.3 Equation of motion for a particle in a straight line, 3.5.4 Model a system of connected particles, 3.5.5 Equations of motion for individual particles, 3.5.6 System with no relative motion as a single particle, and 3.5.7 Equation of motion in a straight line or plane (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.