Answer:
4/5 houses
Explanation:
The speed of the first carpenter is:
(1/5 house) / (3/4 day) = 4/15 house/day
The speed of the second carpenter is:
(2/5 house) / (3/4 day) = 8/15 house/day
Together, their combined speed is:
4/15 house/day + 8/15 house/day = 12/15 house/day
= 4/5 house/day
Per day, the two carpenters build 4/5 of a house.
Answer:
Mass, m = 6 kg
Explanation:
Given that,
The momentum of the object, p = 18 kg-m/s
Velocity, v = 3 m/s
We need to find the mass of an object.
The momentum of an object is given by :
p = mv
m is mass of the object
So, the mass of the object is 6 kg.
Answer:
As per law of conservation of momentum
1 × 10 = 50× v
v = 1/5 m/S
Or
20 cm/s
That would lead to a chain reaction in the energy prymid
According to Newton’s second law acceleration= force/mass
So acceleration = 10/2
= 5m/s^2