B) Irregular
Good luck on the rest :D
Answer: In SI units, G has the value 6.67 × 10-11 Newtons kg-2 m2. The direction of the force is in a straight line between the two bodies and is attractive. Thus, an apple falls from a tree because it feels the gravitational force of the Earth and is therefore subject to “gravity”.
Explanation:
Answer:
t = 66.7 s
Explanation:
Given that,
Speed of a hare, v = 15 m/s
Speed of a turbocharged tortoise, v' = 3 m/s
The hare in a 250 meter race
Let the Hare takes time t. It can be calculated as follows :
Let a turbocharged tortoise takes t'. It can be calulated as follows :
To tie the race, required time is given by :
Hence, the correct option is (b) i.e. 66.7 seconds.
The objects mass = volume x density