Lower Point | Highest Point | |
a. | mg - T_1 | mg + T_2 |
b. | mg + T_1 | mg - T_2 |
c. | mg + T_1 - (mv^2_1) / R | mg - T + (mv^2_1) / R |
d. | mg - T_1 - (mv^2_1) / R | mg + T_2 + (mv^2_1) / R |
A ball moving with a momentum of 5kgm/s strikes against a wall at angle of {45^ \circ } and is deflected at the same angle. Calculate the change in momentum.
A man weighing 70 kg carries a weight of 10 kg to top of a tower 100 m high. Calculate the work done by the man
Lowest Point | Highest Point |
mg - T_1 | mg + T_2 |
mg + T_1 | mg - T_2 |
mg + T_1 -(mv_1^2)/R | mg - T_2 + (mv_1^2)/R |
mg - T_1 -(mv_1^2)/R | mg + T_2 + (mv_1^2)/R |