![Block P of mass 2 kg slides down the surface and has a speed 20 m/s at the lowest](https://www.gkseries.com/blog/wp-content/uploads/2023/10/Block-P-of-mass-2-kg-slides-down-the-surface-and-has-a-speed-20-m-s-at-the-lowest.jpg)
Q. Block P of mass 2 kg slides down the surface and has a speed 20 m/s at the lowest point, Q, where the local radius of curvature is 2 m as shown in the figure. Assuming g = 10 m/s2, the normal force (in N) at Q is_____________________(correct to two decimal places).
![](https://www.gkseries.com/blog/wp-content/uploads/2023/10/image-54.png)
Ans: 419.00 – 421.00