Question

You must have heard the story of the hare and tortoise. ‘Good morning, tortoise’ said the hare
very slowly, mocking the tortoise of his speed. ‘Why do you talk like that, hare? Is there
something wrong with you?’ questioned the tortoise. ‘No, but you talk very slow’ said the hare
to the tortoise. And he started laughing. ‘I challenge you to a race’ the hare said to the tortoise.
He got out of the pond and shook the water from his shell. The first one to arrive at the apple
tree on top of that hill would be the winner. The hare wouldn’t believe that he was challenged
by a slow tortoise. And he was not merely a slow tortoise; he was an old tortoise, too. They
both started the race from the resting position. The race started at 7.00 pm and the tortoise
reached the destination by 9.00 pm .The average speed of the tortoise remained 85 Km/h.
When the race began, both accelerated forward. The hare accelerated uniformly at a rate of 1
m/s
2
for 5 sec. (4.7 seconds). It then continued at a constant speed for 12.5 sec. (11.9 seconds),
before getting tired and slowing down with constant acceleration coming to rest 85 (82) meters
from where they started. The tortoise accelerated uniformly for the entire distance, finally
catching the hare just as the hare comes to a stop.
37. What is the acceleration of the tortoise?
1 point
(a) 12 m/s2
(b) 1m/s2
(c) 0.1 m/s2
(d) 2 m/s2
38. What is the distance covered by the tortoise?
1 point
(a) 100 km
(b) 150 km
(c) 170 km
(d) 190 km
39. How fast is the hare going 2.4 seconds after it starts?
1 point
(a) 2.4 m/s
(b) 2 m/s
(c) 3 m/s
(d) 4 m/s
40. How far does the hare travel before it begins to slow down?
1 point
(a) 63.23m
(b) 75.0m
(c) 66.97m
(d) 56.76m​

Answer 1

Answer:

b) 1m/s2

c) 170

d) 4m/s

a) 63.23m