4. (a) Write down (in symbols) the equation relating the resultant force F, mass m and...
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4. (a) Write down (in symbols) the equation relating the resultant force F, mass m and acceleration a of a body. (b) A trolley of mass 3 kg is pulled by a constant force on a frictionless surface. (1) If the acceleration of the trolley is 2 m s, calculate the resultant force. (H) If the force applied is 3 N, calculate the acceleration of the trolley. (c) When the trolley in (b) is pushed along a different surface with a force of 6 N, it moves with a constant speed of 0.40 m s. When the trolley is pushed along the surface with a force of 15 N, describe and explain what happens in terms of the acceleration of the trolley. 4. (a) Write down (in symbols) the equation relating the resultant force F, mass m and acceleration a of a body. (b) A trolley of mass 3 kg is pulled by a constant force on a frictionless surface. (1) If the acceleration of the trolley is 2 m s, calculate the resultant force. (H) If the force applied is 3 N, calculate the acceleration of the trolley. (c) When the trolley in (b) is pushed along a different surface with a force of 6 N, it moves with a constant speed of 0.40 m s. When the trolley is pushed along the surface with a force of 15 N, describe and explain what happens in terms of the acceleration of the trolley.
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Related Book For
Vector Mechanics for Engineers Statics and Dynamics
ISBN: 978-0073212227
8th Edition
Authors: Ferdinand Beer, E. Russell Johnston, Jr., Elliot Eisenberg, William Clausen, David Mazurek, Phillip Cornwell
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