Question

a body if mass 600g slides on a rough horizontal surface .If the frictional force is 3N ,then the magnitude of reaction is (take g=10m/s^2)​

Answer 1

Explanation:

at first........

convert 600g to 0.6kg

therefore use the formula N=mg

therefore

N=0.6 × 10

N=6

therefore 6N

now use the formula

R=√N^2 + √F^2

=√6^2 + √ 3^2

= √36+ 9

= √45

= 6.70....... is the magnitude of reaction

Answer 2

Answer:

R= 2√10

Explanation:

m=0.6 kg

f= 2N

N= mg

N= 6N

R²=N²+F²

R²=6²+ 2²

R²=36+4

R²=40

R= √4×√10

R= 2√10N