Answer:
24.084 m/s
Explanation:
From the law of conservation of linear momentum
Total momentum before collision equals to the total momentum after collision
Since momentum=mv where m is mass and v is velocity
where is the mass of the truck, is velocity of the truck, is the common velocity of moving and standing truck after collision and is the mass of the standing truck
Making the subject we obtain
Substituting as 25000 Kg, as 22.3 m/s, as 2000 Kg we obtain
Therefore, assuming no friction and considering that after collision they still move eastwards hence common velocity and initial truck velocities are positive
The truck was moving at 24.084 m/s
Since "you will weigh more on jupiter" isn't an option, your answer is <u>B."weigh more than on Earth"</u> <em>btw ik this is a late answer but for the people out there still searching for an answer hope this helps!</em>
Joule (J) is the metric unit for energy
Answer:
14778.29 N
Explanation:
Diameter, d=10.1mm=
Since stress, where F is force, A is area and since specimen is cylindrical,
A= Therefore,
Also strain where L is length
Poison’s ratio,v is the ratio of lateral strain to longitudinal strain hence
V=
From Hooke’s law,
Conclusively,
F=
F= = 14778.29N
Therefore, required force F is 14778.29 N