Question

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?​

Answer 1

Answer:

1.uniformly accelerated motion since slope of v~t graph is a straight line having positive slope

2.uniform motion since slope of v~t graph is zero

3.uniformly retarded motion since slope of v~t graph is negative

4.(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 zero

5. between 3 to 5 second acceleration is zero so it is uniform motion

Hence distance traveled by the body in this interval is given by ,

Vt=30×2=60m