You stand on a spring scale on the floor of a | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The reading on a spring scale represents the normal force $(N)$ exerted by the floor on the person. According to Newton's second law,$N - mg = ma$

Vedclass · Accepted Answer

moves upward with increasing speed

Vedclass · Answer

(B) The reading on a spring scale represents the normal force $(N)$ exerted by the floor on the person. According to Newton's second law,$N - mg = ma$,where $m$ is the mass of the person,$g$ is the acceleration due to gravity,and $a$ is the acceleration of the elevator. Thus,$N = m(g + a)$. The reading is highest when the upward acceleration $(a)$ is positive and maximum. When the elevator moves upward with increasing speed,it has a positive upward acceleration $(a > 0)$,resulting in $N = m(g + a) > mg$. In other cases,the acceleration is either zero or negative (downward),leading to a lower reading.

You stand on a spring scale on the floor of an elevator. Of the following,the scale shows the highest reading when the elevator

Similar Questions

$A$ coin is dropped in a lift. It takes time $t_1$ to reach the floor when the lift is stationary. It takes time $t_2$ when the lift is moving up with constant acceleration $a$. Then:

$A$ man of mass $75\, kg$ is standing in an elevator which is moving with an acceleration of $5\, m/s^2$ in the upward direction. The apparent weight of the man will be ........... $N$ $(g = 10\, m/s^2)$.

$A$ person of mass $50 \, kg$ stands on a weighing scale in a lift. If the lift is descending with a downward acceleration of $9 \, m/s^2$,what would be the reading of the weighing scale (in $, kg$)? (Take $g = 10 \, m/s^2$)

$A$ ball is suspended on a thread from the ceiling of a car. The brakes are applied and the speed of the car changes from $5\, m/s$ to $\frac{5}{3}\, m/s$ during the time interval of $3\, s$. The angle that the thread will deviate from the vertical in the new equilibrium position is:

$A$ truck is stationary and has a bob suspended by a light string in a frame attached to the truck. The truck suddenly moves to the right with an acceleration of $a$. The pendulum will tilt:

Vedclass Test Series

Exam Paper Generator

Online Exam Module