Step 1: Find the friction force for each block The friction force is given by: F‌friction ‌=µk×m×g For block A (mass =2kg ): FKA=0.3×2×10=6N For block B (mass =4kg ): FKB=0.3×4×10=12N Step 2: Find the net force on each block The net force is the applied force minus friction: For block A : FA=20−6=14N For block B : FB=20−12=8N Step 3: Find the acceleration of each block Use a=‌
Fnet
m
for each block. For block A : aA=‌
14
2
=7m∕s2 For block B : aB=‌
8
4
=2m∕s2 Step 4: Find the ratio of accelerations ‌
