Question

1. M/s is not a unit of .
1. displacement
2. velocity
3. speed
4. none of the above

2. An object travels 16m in 4s and then other 16m in 2sec. what is the average speed of the object.

3. A ACCELERATEs uniformly from 18km/h to 36km/h in 5sec. calculate acceleration​

Answer 1

Answer:

1. The metre per second is an SI derived unit of both speed (scalar quantity) and velocity (vector quantity (which have direction and magnitude)), equal to the speed of a body covering a distance of one metre in a time of one second.

Unit system: SI

2. The average speed of the object is 5.33 m/s.

3. Initial speed = u = 18 km/hr = 5 m/s.

Final sped = v = 36 km/hr = 10 m/s.

acceleration a = (v-u)/t = (10-5)/5 = 1 m/s2

Distance travelled S = u t + (1/2) a t2 = 5×5 + (1/2)×1×52 = 37.5 m.

Explanation:

take help of 2nd answee from pic

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