A powered research sledge of mass 550 kg tows an instrument pod of mass 250 kg across level ice using a light horizontal cable. The motor supplies a horizontal force of 2600 N. A resistive force of 350 N acts on the sledge, and the two bodies accelerate at 2.5 m s-2.
Find the resistive force acting on the instrument pod.
Find the tension in the cable.
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.