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Observe the above v-t graph and answer the following questions . 1. What type of motion the object is having up to 3 seconds? 2. What type of motion the object is having from the end of 3 second to 5 seconds 3. What type of motion the object is having from the end of 5 seconds to the end of 8 seconds? 4. During what time the object has (a) positive acceleration (b) negative acceleration (c) zero acceleration? 5. Calculate the distance travelled by the body from the end of 3 seconds to the end of 5 seconds? |
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Answer» 1.uniformly ACCELERATED motion since slope of v~t graph is a straight LINE having positive slope2.uniform motion since slope of v~t graph is zero3.uniformly retarded motion since slope of v~t graph is negative4.(a)0 to 3 second as slope is +ve(B)5 to 8 second because slope is -ve(c)3 to 5 second because slope is ZERO5. between 3 to 5 second acceleration is zero so it is uniform motionHence distance traveled by the body in this interval is given by ,Vt=30×2=60m |
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