Higher Study | Engineering Mechanics | Kinematics and Kinetics

Practice Higher Study | Engineering Mechanics | Kinematics and Kinetics on Bissoy — browse topics below and open any question.

Questions

If tension in the cable supporting a lift moving downwards is half the tension when it is moving upwards, the acceleration of the lift is

ক

$$\frac{{\text{g}}}{2}$$

খ

$$\frac{{\text{g}}}{3}$$

গ

$$\frac{{\text{g}}}{4}$$

ঘ

None of these

A person who weighs 800 N steps onto a scale that is on the floor of an elevator car. If the elevator accelerates upward at a rate of 5 m/s2, what will the scale read?

ক

400 N

খ

800 N

গ

1,000 N

ঘ

1,200 N