Answer:
225 meters
Explanation:
45*5 or 225 meters.
Hope this helps plz hit the crown :D
Answer:
W = -2080 J
Explanation:
initial position vector of the object is given as

similarly final position vector is given as

now the displacement of the object is given as

now we will have


now the force on the object is given as

so here in order to find the work done



Answer:
Total time to complete the race = 45 sec
Explanation:
We have given that each lap is 60 m long
Average speed for the first lap = 2 m/sec
So time taken to complete the first lap 
Average speed for second lap = 2 m/sec
So time taken to cover the second lap 
So total time to complete the race = 30 +15 =45 sec
Answer:
- solution,
- Given
- load =400N
- ld=0.2m
- ed=0.6m
- effort =150N
Explanation:
efficiency =output work/input work ×100%
l×ld/e×ed×100%
400×0.2/150×0.6×100%
80/90×100%
88.89%ans