Bihar board l-4

12th English Answer Key 2022 Set-A to J | English Objective Answer Key 2022 Bihar Board

A uniform board of length L is sliding along a smooth (frictionless) horizontal plane as in figure. The board then slides across the boundary with a rough horizontal surface. The coefficient of kinetic friction between the board and the second surface surface is mu_k a. Find the acceleration of the board at the moment its front end has traveled a distance x beyond the boundary. b. The board stops at the moment its back end reaches the boundary, as in figure. Find the initail speed v of the board.

Rennae needs to purchase at least 20 boards for group art project. The poster boards come in the small size, which costs $30 per board, and the larger size., which costs $50 per board. Her allowance for purchasing poster boards is no more than $860 in total. She must purchase at least 5 small poster boards and 4 larger poster boards.If a represents the number small poster boards and b represents the number of large poster boards, which of the following system of inequalities represents the restrictions described?

A traffic signal board, indicating ‘SCHOOL AHEAD’, is an equilateral triangle with side ‘a’. Find the area of the signal board, using Heron’s formula. If its perimeter is 180 cm, what will be the area of the signal board?

A traffic signal board, indicating SCHOOL AHEAD, is an equilateral triangle with side a ' . Find the area of the signal board, using Herons formula. If its perimeter is 180 c m ,\ what will be the area of the signal board?

A traffic signal board, indicating ‘SCHOOL AHEAD’, is an equilateral triangle with side ‘a’. Find the area of the signal board, using Heron’s formula. If its perimeter is 180 cm, what will be the area of the signal board?

A flat horizontal board moves up and down under SHM vertically with amplitude A. The shortest permissible time period of the vibration such that an object placed on the board may not lose contact with the board is

A horizontal board is oscillating with an amplitude of 3 m. If the frequency of oscillation is 15 per minute, find the minimum value of coefficient of friction in order that a body placed on the board will A not slide when the board oscillates ?

A traffic signal board, indicating 'SCHOOL AHEAD' , is an equilateral triangle with side a. Find the area of the signal board, using Heron's formula. If its perimeter is 180 cm, what will be the area of the signal board?

Rajasthan board physics model paper 2022