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Dynamics of a system can be divided into kinematics and kinetics. To analyse the dynamic of the system, accelerated motion of a body will be considered. (a) State the difference between kinematics and kinetics? (b) Briefly describe the differences between rectilinear motion and curvilinear motion? Provide drawings in your answer to describe the motion. (c) Car A is initially starting from rest and travelling along a straight road with a constant acceleration of 5 ms-² until it reaches a speed of 50 ms¬1 as shown in Figure Q.2(c). Afterwards, this speed is maintained. At the same time, car B is initially travell ing towards A at a constant speed of 30 m/s (i) Draw v-t graphs for both cars A and B. In both graphs_ tabel 11 which is the time just before the cars passing by each other (ii) Find the distance travelled by car A when it reaches a speed of 50 m/s (iii) Express the equation for disuance travelled in term of ti for car A when it travels in a constant speed of 50 m/s and for car B when it travels in a constant speed of 30 m/s. (iv) Calculate the distance travelled by car A when it pass car B. 30 km/s В 9 km Figure Q.2(c)

Dynamics of a system can be divided into kinematics and kinetics. To analyse the dynamic of the system, accelerated motion of a body will be considered. (a) State the difference between kinematics and kinetics? (b) Briefly describe the differences between rectilinear motion and curvilinear motion? Provide drawings in your answer to describe the motion. (c) Car A is initially starting from rest and travelling along a straight road with a constant acceleration of 5 ms-² until it reaches a speed of 50 ms¬1 as shown in Figure Q.2(c). Afterwards, this speed is maintained. At the same time, car B is initially travell ing towards A at a constant speed of 30 m/s (i) Draw v-t graphs for both cars A and B. In both graphs_ tabel 11 which is the time just before the cars passing by each other (ii) Find the distance travelled by car A when it reaches a speed of 50 m/s (iii) Express the equation for disuance travelled in term of ti for car A when it travels in a constant speed of 50 m/s and for car B when it travels in a constant speed of 30 m/s. (iv) Calculate the distance travelled by car A when it pass car B. 30 km/s В 9 km Figure Q.2(c)

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Q.2 Dynamics of a system can be divided into kinematics and kinetics. To analyse the dynamic of the system, accelerated motion of a body will be considered. (a) State the difference between kinematics and kinetics? (b) Briefly describe the differences between rectilinear motion and curvilinear motion? Provide drawings in your answer to describe the motion. (c) Car A is initially starting from rest and travelling along a straight road with a constant acceleration of 5 ms-2 until it reaches a speed of 50 ms-1 as shown in Figure Q.2(c). Afterwards, this speed is maintained. At the same time, car B is initially travelling towards A at a constant speed of 30 m/s (i) Draw v-t graphs for both cars A and B. In both graphs tabel ti which is the time just before the cars passing by each other. (ii) Find the distance travelled by car A when it reaches a speed of 50 m/s (iii) Express the equation for disuance travelled in term of ti for car A when it travels in a constant speed of 50 m/s and for car B when it travels in a constant speed of 30 m/s. (iv) Calculate the distance travelled by car A when it pass car B. 30 km/s В 9 km Figure Q.2(c)
Transcribed Image Text:Q.2 Dynamics of a system can be divided into kinematics and kinetics. To analyse the dynamic of the system, accelerated motion of a body will be considered. (a) State the difference between kinematics and kinetics? (b) Briefly describe the differences between rectilinear motion and curvilinear motion? Provide drawings in your answer to describe the motion. (c) Car A is initially starting from rest and travelling along a straight road with a constant acceleration of 5 ms-2 until it reaches a speed of 50 ms-1 as shown in Figure Q.2(c). Afterwards, this speed is maintained. At the same time, car B is initially travelling towards A at a constant speed of 30 m/s (i) Draw v-t graphs for both cars A and B. In both graphs tabel ti which is the time just before the cars passing by each other. (ii) Find the distance travelled by car A when it reaches a speed of 50 m/s (iii) Express the equation for disuance travelled in term of ti for car A when it travels in a constant speed of 50 m/s and for car B when it travels in a constant speed of 30 m/s. (iv) Calculate the distance travelled by car A when it pass car B. 30 km/s В 9 km Figure Q.2(c)
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